Skip to content
What's After the Movie?

Jump to
What's After the Movie?
Comedy

Blue Murder at St. Trinian’s (1957): Cast & Plot

Blue Murder at St. Trinian’s (1957) movie poster

Blue Murder at St. Trinian’s is a 1957 comedy directed by Frank Launder, starring Alastair Sim as Miss Amelia Fritton, George Cole and Alma Taylor. It runs 1 hour 26 minutes.

Loading streaming availability…
Read the plot summary
Blue Murder at St. Trinian’s (1957) movie poster
Released
Runtime
1h 26m (86 min)
Director
Frank Launder
Genre
Comedy
Original language
English
Studio
John Harvel Productions
After the credits
No No extra scene
The story

What Is Blue Murder at St. Trinian’s About?

The premise of Blue Murder at St. Trinian’s without spoilers. The whole story is in the plot summary further down.

The St. Trinian’s girls are back and up to their usual mischief. With their headmistress locked away in a royal prison, the unruly students fall under the watch of the British army. Determined to win a coveted trip to Italy, the sixth‑formers resort to any scheme they can devise, leaving the military helpless. Their chaotic pursuit spreads across Europe, soon threatening diplomatic relations as the girls’ antics spiral out of control.

Blue Murder at St. Trinian’s Themes & Keywords

· 18 tags
  • slapstick comedy
  • farce comedy
  • italy
  • headmistress
  • jewel theft
  • playboy
  • army unit
  • ministry of education
  • marriage bureau
  • teenage girl
  • false identity
  • robber
+6 more
  • school competition
  • female protagonist
  • sergeant
  • uniform
  • schoolgirl
  • sequel
Loading streaming availability…
Cast & crew

Blue Murder at St. Trinian’s Cast & Characters

Alastair Sim leads the cast as Miss Amelia Fritton, with George Cole as "Flash" Harry and Alma Taylor as Prince Bruno's Mother. Directed by Frank Launder; 39 actors are credited in all.

Also Starring in Blue Murder at St. Trinian’s

· 35 more
Show all 39 cast members
From the director

More from Frank Launder

More films directed by Frank Launder: The Wildcats of St. Trinian’s, The Great St. Trinian’s Train Robbery, The Pure Hell of St. Trinian’s and The Bridal Path.

Full filmography
Plot

Blue Murder at St. Trinian’s Plot Summary

What happens in Blue Murder at St. Trinian’s from start to finish, spoilers included, with a timeline of 13 key events. The opening is below; the full summary is a 3-minute read.

Spoilers ahead

At St. Trinian’s, chaos grips the place as the students run wild under headmistress Miss Amelia Fritton, Alastair Sim, with the teaching staff gone and the Ministry of Education stepping in to keep order with a little help from the army. In the midst of this upheaval, the school’s dashing business associate Flash Harry, George Cole, hatches a scheme that blends romance, ambition, and mischief: he launches a marriage bureau for the sixth form girls, hoping to secure a match for one of them with Prince Bruno, a plan that promises both prestige and profit.

Full summary

The whole story of Blue Murder at St. Trinian’s, scene by scene

Read the full summary
Quiz

How Well Do You Know Blue Murder at St. Trinian’s?

10 questions about the story, each with a hint if you get stuck. Pick an answer to see whether you were right.

Question 1 of 10

  1. Question 1: not answered
  2. Question 2: not answered
  3. Question 3: not answered
  4. Question 4: not answered
  5. Question 5: not answered
  6. Question 6: not answered
  7. Question 7: not answered
  8. Question 8: not answered
  9. Question 9: not answered
  10. Question 10: not answered

Who serves as the headmistress of St. Trinian’s during the chaos?
Cars

Cars in Blue Murder at St. Trinian’s

11 cars on screen, including the 1937 Bedford WTB and the Bedford WTB.

All 11 cars
  • 1937 Bedford WTB in Blue Murder at St. Trinian’s 1937 Bedford WTB Main role
  • Bedford WTB in Blue Murder at St. Trinian’s Bedford WTB Important role
  • 1956 Heinkel Kabine in Blue Murder at St. Trinian’s 1956 Heinkel Kabine Important role
  • 1954 Wolseley 6/80 in Blue Murder at St. Trinian’s 1954 Wolseley 6/80 Important role
Details

Blue Murder at St. Trinian’s Also Known As

2 alternative titles: “荒唐娘子军” and “Mare balamuc la St. Trinian's”.

Also known as
  • 荒唐娘子军
  • Mare balamuc la St. Trinian's

Seen Blue Murder at St. Trinian’s?
More like this

Movies Like Blue Murder at St. Trinian’s

Films with a similar story, tone or audience, including St. Trinian's, The Great St. Trinian’s Train Robbery and The Wildcats of St. Trinian’s.

FAQ

Blue Murder at St. Trinian’s FAQ: Cast & Runtime

Runtime, release date, director, cast and post-credit scenes of Blue Murder at St. Trinian’s, each answered in a sentence.

How long is Blue Murder at St. Trinian’s?

Blue Murder at St. Trinian’s runs 1 hour 26 minutes (86 minutes).

When was Blue Murder at St. Trinian’s released?

Blue Murder at St. Trinian’s was released on December 1, 1957.

Who directed Blue Murder at St. Trinian’s?

Blue Murder at St. Trinian’s was directed by Frank Launder.

More films by Frank Launder

Who is in the cast of Blue Murder at St. Trinian’s?

Blue Murder at St. Trinian’s stars Alastair Sim as Miss Amelia Fritton, George Cole as "Flash" Harry and Alma Taylor as Prince Bruno's Mother, among 39 credited actors.

Does Blue Murder at St. Trinian’s have a post-credit scene?

No. Blue Murder at St. Trinian’s has no extra scene during or after the credits.

Coming soon to your phone

The Plot Explained Movie Summary App

From blockbusters to hidden gems: plot summaries, endings explained and timelines on your phone. Save your favorites and never miss a twist again.

Be the first to know when it launches. Your email stays private, always. Learn more about the app