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On an Island with You (1948) Plot Summary & Timeline

On an Island with You (1948) movie poster

On an Island with You is a 1948 comedy and music film directed by Richard Thorpe, running 1 hour 47 minutes. This page retells the whole story in 321 words (about 1 minute to read) and covers 12 key events in order, 10 characters, where and when it is set and 3 themes. Looking for the cast, ratings and where to stream it? See the movie page for On an Island with You.

to read the plot summary
1 min
key events in the timeline
12
characters profiled
10
themes explained
3
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On an Island with You (1948) movie poster
Released
Runtime
1h 47m
Director
Richard Thorpe
Genres
Comedy, Music, Romance
Original language
English
No spoilers

What Is On an Island with You About?

The premise of On an Island with You in 333 words, with nothing given away. The full story follows below.

On a sun-soaked Hawaiian tropical island, the glamour of Hollywood meets the precision of the military in a vibrant musical spectacle. The production is a dazzling display of aquatic stunts and choreography, headlined by swimming sensation Rosalind Reynolds. With her fiancé, Ricardo Montez, starring alongside her, the film promises to be a showcase of romance and talent, all supervised by the watchful eye of the U.S. Navy. The atmosphere is a unique blend of cinematic make-believe and military formality, setting the stage for a story where off-screen emotions threaten to eclipse the scripted drama.

Into this mix steps Lt. Lawrence Kingslee, a technical adviser hired to lend authenticity to the naval sequences. Kingslee brings more than just professional expertise to the set; he carries a vivid memory of a past encounter with Rosalind during a USO show. Convinced that their brief performance together sparked a lasting connection, he arrives with the expectation that she will welcome his romantic advances. His certainty is swiftly challenged by the reality of Rosalind’s current relationship, creating an immediate friction that simmers beneath the tropical heat.

The dynamics grow more intricate as the film crew settles into the lush surroundings. While Larry navigates his role as a cautious observer while pursuing his heart’s desire, the glamorous facade of the production begins to show cracks. Yvonne Torro, Rosalind’s best friend and fellow star, watches the unfolding drama with her own interests at heart, specifically regarding Ricardo. This creates a tangled circle of affection where loyalties are questioned and friendships are tested against the allure of unrequited love.

As the cameras roll and the orchestra plays, the idyllic setting becomes a backdrop for simmering tensions. Larry’s determination to win Rosalind’s affection drives a wedge into the production’s harmony, forcing everyone to reevaluate their positions in this romantic quartet. With professional duties clashing with personal yearning, the line between the reel world and the real world blurs, hinting that the most captivating drama may be happening far from the director’s cut.

Full plot

What Happens in On an Island with You?

The complete story of On an Island with You, from the first scene to the last, in 321 words (about 1 minute). Spoilers throughout. Names in the text link to 5 cast member pages.

Spoilers ahead

On a sun-soaked Hawaiian tropical island, Rosalind Reynolds, Esther Williams, a swimming sensation, headlines a film with her fiancé, Ricardo Montez Ricardo Montalban. The project includes U.S. Navy Lt. Lawrence Y. Kingslee Peter Lawford, the film’s military technical adviser, who soon finds himself drawn to Rosalind. Yvonne Torro, Cyd Charisse, Rosalind’s best friend and fellow star, secretly wants Ricardo for herself. The behind-the-scenes world of filmmaking blends with the island’s lush scenery, setting the stage for romance and danger.

Three years earlier, Larry met Rosalind during a USO show at his Pacific base, and that memory resurfaces as their paths cross again on set. After sharing a kiss, Larry makes no secret of wanting to spirit Rosalind away on his aircraft. At the Royal Aloha hotel, the film crew is treated to a lively performance by real-life orchestra leader Xavier Cugat and his orchestra, adding a splash of musical glamour to the proceedings.

On the day of a key scene where Rosalind flies over the set, Larry seizes the chance to fly to the island where they first met, hoping for another kiss that would seal his claim. He returns to their aircraft with his feelings confirmed, only to discover that the natives have stolen parts and stranded them on the island.

Meanwhile, her fiancé and the search party he formed are captured by the cannibals who inhabit the tropical isle, but are saved by his rival. The entanglements grow denser as loyalties are tested against a backdrop of peril and splendor.

With events spiraling, Rosalind takes the blame for the unauthorized flight to the island in a bid to shield Kingslee from a court-martial. The truth about Yvonne’s romance emerges: she has become involved with Ricardo, creating a new layer of tension. In the end, Larry and Rosalind realize they are in love, while Yvonne’s involvement with Ricardo reshapes the circle of affections and settles into a bittersweet, hopeful note.

Timeline

On an Island with You Timeline: Every Key Event in Order

12 key events in the order they happen, from “Film set on a Hawaiian island” to “Production continues with new romantic realities”. 11 events name a place, across 11 locations.

  1. 1

    Film set on a Hawaiian island

    Rosalind Reynolds, a swimming sensation, stars in a film set on a Hawaiian tropical island alongside her fiancé Ricardo Montez. The production uses the island’s scenery to frame romantic scenes and lighthearted interactions among the cast. The sun, sea, and social gatherings create an atmosphere thick with potential romance and underlying tension.

    When:during filming Where:Hawaiian tropical island

  2. 2

    Larry's past meeting and growing attraction

    U.S. Navy Lt. Lawrence Y. Kingslee met Rosalind three years earlier during a USO show at his Pacific base, and he quickly becomes smitten. He later kisses her on the film set and reveals a plan to spirit her away aboard his aircraft. This dangerous attraction threatens Rosalind's engagement to Ricardo and foreshadows trouble for everyone involved.

    When:three years before Where:Pacific base / film set

  3. 3

    Hotel scene with Xavier Cugat

    At the Royal Aloha hotel, the real-life Xavier Cugat and his orchestra entertain the cast and crew. The vibrant music provides a social high point and underscores the glamour of the production. It also spotlights the growing romantic tension among the leads.

    When:during filming Where:Royal Aloha hotel

  4. 4

    Larry travels to the island and the spark

    On the next day, Larry flies to the actual island where he first met Rosalind. He asks for a kiss, and Rosalind admits she is attracted to him, intensifying the dilemma posed by her engagement to Ricardo. The attraction between them becomes increasingly undeniable.

    When:the next day Where:the actual island

  5. 5

    Parts stolen; group stranded

    Returning to their aircraft, Rosalind and Larry discover that the natives have stolen essential parts, leaving them marooned on the island. The sudden setback heightens the tension between their growing feelings and the practical need to escape. The island's isolation amplifies the stakes for everyone involved.

    When:immediately after the flight Where:on the island

  6. 6

    Ricardo's search party captured; rescued by rival

    Meanwhile, Ricardo's search party is captured by the island's cannibals, threatening the entire operation. They are saved by Ricardo's rival, whose intervention disrupts loyalties and adds another twist to the drama. The rescue reshapes relationships among the central characters.

    When:during the expedition Where:the island

  7. 7

    Everyone leaves the island; complications begin

    After the main group leaves the island, complications begin to surface back home as emotions and loyalties collide. Rosalind and Larry must navigate their feelings amid the fallout of the island ordeal, while Ricardo's position remains unstable. The cast's personal lives become as fraught as the production schedule.

    When:after departure Where:off island

  8. 8

    Rosalind takes the blame to save Larry

    Facing a court-martial for the unauthorized flight to the island, Rosalind steps forward to take the blame. Her sacrifice buys Larry time and keeps their relationship intact, even as she bears the consequences. The moment marks a turning point in their dynamic and illustrates her loyalty.

    When:post-island Where:military base

  9. 9

    Yvonne's romance with Ricardo revealed

    The circle learns that Yvonne Torro has become romantically involved with Ricardo, Rosalind's fiancé. The revelation intensifies the love triangle and tests everyone's loyalties. Tension mounts as the relationships shift under pressure from the island's events.

    When:after departure Where:mainland / set

  10. 10

    Larry and Rosalind acknowledge their love

    In the wake of the revelations, Larry and Rosalind finally acknowledge that they are in love. The admission reframes their futures and gives them a path forward despite the surrounding complications. The couple's bond becomes the emotional core of the story's end.

    When:end

  11. 11

    Behind-the-scenes tensions and motives hinted

    Yvonne's secret motives and the rivalries among the cast surface behind the scenes, adding texture to the public image of the star-studded production. These undercurrents remind the audience that appearances can mask complicated personal agendas. The film uses these dynamics to enrich the narrative.

    When:early Where:behind the scenes

  12. 12

    Production continues with new romantic realities

    With the major romantic upheavals resolved or acknowledged, the production moves forward, balancing professional duties with the personal revelations that have reshaped the cast. Rosalind and Larry's romance stands as a new anchor, even as Yvonne and Ricardo's relationship remains entangled. The ending leaves room for future developments both on and off screen.

    When:post-conflict / end Where:Hawaiian island / mainland

Characters

Who Are the Main Characters in On an Island with You?

10 characters, among them Rosalind Rennolds — Esther Williams, Lt. Lawrence Y. Kingslee — Peter Lawford and Ricardo Montez — Ricardo Montalban: who each one is and the part they play in the story. 9 of them link to the actor’s page.

  • RR

    Rosalind Rennolds — Esther Williams

    Played by Esther Williams

    Rosalind is a celebrated swimmer and film star whose romance and career collide on a tropical island. Her charm drives the plot as she navigates love, fame, and professional responsibilities.

    • 💖
    • 🎭
    • 🎬
  • Peter Lawford as Lt. Lawrence Y. Kingslee — Peter Lawford in On an Island with You

    Lt. Lawrence Y. Kingslee — Peter Lawford

    Played by Peter Lawford

    A U.S. Navy technical adviser who falls for Rosalind and endangers his career with an unauthorized island flight. He brings a mix of bravado and earnestness to the romance.

    • 💘
    • 🧭
    • 🚁
  • RM

    Ricardo Montez — Ricardo Montalban

    Played by Ricardo Montalban

    Rosalind's fiancé, whose relationship with Rosalind and involvement with Yvonne adds tension to the love triangle. He represents stable romance amid ensemble chaos.

    • 💍
    • 🎭
  • YT

    Yvonne Torro — Cyd Charisse

    Played by Cyd Charisse

    Rosalind's best friend and fellow star who secretly desires Ricardo. Her actions fuel the romantic complications and mirror the competitive nature of Hollywood friendships.

    • 💘
    • 🎭
  • Jimmy Durante as Buckley — Jimmy Durante in On an Island with You

    Buckley — Jimmy Durante

    Played by Jimmy Durante

    A boisterous presence providing comic relief on the island-set production, adding warmth and chaos to the film's lighthearted moments.

    • 😂
    • 🎶
  • Kathryn Beaumont as Penelope Peabody — Kathryn Beaumont in On an Island with You

    Penelope Peabody — Kathryn Beaumont

    Played by Kathryn Beaumont

    A fellow star and Rosalind's co-star, whose presence adds to the ensemble dynamics and romantic entanglements of the production.

    • 🎭
    • 💬
  • Leon Ames as Commander Harrison — Leon Ames in On an Island with You

    Commander Harrison — Leon Ames

    Played by Leon Ames

    A military figure connected to the film's technical advisement, representing authority and potential conflict within the island romance and production.

    • 🧭
    • 🎖️
  • XC

    Xavier Cugat — Xavier Cugat

    Played by Xavier Cugat

    The real-life orchestra leader entertaining the cast, symbolizing the musical glamour surrounding the tropical production.

    • 🎶
    • 🎺
  • GB

    George Blaine — Dick Simmons

    Played by Dick Simmons

    A cast member within the production’s ensemble, contributing to the island's theatrical atmosphere and plot developments.

    • 🎭
    • 👥
  • CC

    Chester Clute

    Supporting cast member adding to the ensemble dynamic of the island-set film.

    • 🎬
    • 👨
Setting

Where and When Is On an Island with You Set?

On an Island with You is set in Hawaii, Royal Aloha Hotel and Pacific island (Early 1950s). Here is why the time and place matter to the story.

When

Early 1950s

The story unfolds in the early 1950s, a period marked by Hollywood's tropical-location productions and glamorous musical numbers. A U.S. Navy liaison and a UsO-style show context frame the romance against a backdrop of studio life and on-location adventures. The era's fashion, music, and film industry dynamics shape the characters' choices and the plot's tone.

Where

Hawaii, Royal Aloha Hotel, Pacific island

Set on a Hawaiian island, the location doubles as a film set and a tropical getaway for the cast. The Royal Aloha hotel hosts the production, while the island’s landscape provides scenic beauty and the stage for romantic complications. The island is inhabited by natives whose actions drive key plot moments, including the disappearing parts that strand the crew.

  • 🏝️ Island
  • 🎬 Film set
  • 🏨 Hotel
Themes

What Are the Themes of On an Island with You?

3 ideas the story keeps returning to, among them Romance vs Duty, Film World vs Real World and Exoticism & Jealousy.

  1. 01

    Romance vs Duty

    Rosalind's growing love for Larry clashes with her engagement to Ricardo and her obligations on a film set. Larry's unauthorized flight to the island threatens his career and forces a reckoning with professional duty. The relationship tests social expectations and the characters' commitment to fame versus personal happiness.

  2. 02

    Film World vs Real World

    The narrative blends the glitz of a movie production with real-life romance and danger on the island. Performances, music, and studio concerns intrude on intimate relationships, while the line between fiction and reality adds humor and tension. The island's adventures remind viewers that life off-screen can be just as dramatic as any scene.

  3. 03

    Exoticism & Jealousy

    The tropical setting provides an exotic backdrop that fuels jealousy and romantic intrigue among the stars. Yvonne's hidden longing for Ricardo complicates Rosalind and Larry's budding romance. The paradise image contrasts with the characters' messy, real-life emotions, driving the film's dramatic turn.

Tone & mood

What Kind of Film Is On an Island with You?

Light in tone, with steady pacing and a straightforward story, going by the plot summary.

Tone
Light
Pacing
Steady
Story
Straightforward
Intensity
Medium
Ending
Happy

A sun-drenched and lively MGM musical that feels like a glamorous tropical getaway, blending romantic entanglements and playful behind-the-scenes antics with energetic song-and-dance numbers.

  • glamorous
  • whimsical
  • romantic
  • lively
  • sunswept
  • playful
  • romantic triangle
  • behind the scenes hollywood
  • mistaken identity
  • rekindled romance

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FAQ

On an Island with You Plot Questions

5 quick answers about On an Island with You, taken from the plot summary, character guide and setting on this page and the film’s credits.

What is On an Island with You about?

On a sun-soaked Hawaiian tropical island, the glamour of Hollywood meets the precision of the military in a vibrant musical spectacle. The production is a dazzling display of aquatic stunts and choreography, headlined by swimming sensation Rosalind Reynolds.

Read the full plot summary

When and where does On an Island with You take place?

On an Island with You is set in Hawaii, Royal Aloha Hotel and Pacific island (Early 1950s). The story unfolds in the early 1950s, a period marked by Hollywood's tropical-location productions and glamorous musical numbers. A U.S.

The setting explained

Who are the main characters in On an Island with You?

The story follows Rosalind Rennolds — Esther Williams (played by Esther Williams), Lt. Lawrence Y. Kingslee — Peter Lawford (played by Peter Lawford), Ricardo Montez — Ricardo Montalban (played by Ricardo Montalban) and Yvonne Torro — Cyd Charisse (played by Cyd Charisse); the character guide covers 10 characters in all.

All the characters

What are the main themes of On an Island with You?

The summary picks out 3 themes: Romance vs Duty, Film World vs Real World and Exoticism & Jealousy.

The themes explained

Who directed On an Island with You?

On an Island with You (1948) was directed by Richard Thorpe and runs 1 hour 47 minutes.

Richard Thorpe’s films

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