
Ryan Richmond is an eccentric teen living with his family in their Holiday Inn in Sunnyvale, Arizona—the prune capital of the world. He longs to escape to college in Saudi Arabia, spends time with his sex‑obsessed best friend Dan and fancies lounge singer Lisa Winston. After a quirky computer‑dating service hints he may be an alien, strangers arrive claiming he’s an alien prince destined to lead his people home, sparking chaotic events.
Does Doin’ Time on Planet Earth have end credit scenes?
No!
Doin’ Time on Planet Earth does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Doin’ Time on Planet Earth, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Maureen Stapleton
Helium Balloon Saleslady

Martha Scott
Virginia Camalier

Adam West
Charles Pinsky

Roddy McDowall
Minister

Kellie Martin
Sheila

Matt Adler
Dan Forrester

Hugh O'Brian
Richard Camalier

Dominick Brascia
The Jock

Hugh Gillin
Fred Richmond

Candice Azzara
Edna Pinsly

Charles Matthau

Gregg Christie
Steve Peterson

Andrea Thompson
Lisa Winston

Timothy Patrick Murphy
Jeff Richmond

Linda Lutz
Nurse

Gloria Henry
Mary Richmond

Susan Ursitti
Sarah

Paula Irvine
Marilyn Richmond

Michael Lindström
Wedding Guest (uncredited)

Nicholas Strouse
Ryan Richmond

Isabelle Walker
Jenny Camalier

Cecil Hill
Band Leader

Kelly Hyman
Donna (as Kelly Mohre)
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Read the complete plot summary of Doin’ Time on Planet Earth, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Ryan Richmond is a bright teenage resident of his family’s Holiday Inn in Arizona, an exceptionally intelligent youngster who still feels like an outsider among both his peers and his own relatives. His sharp mind offers him a chance to study abroad, a path that promises new horizons, but his parents are preoccupied with the upcoming wedding of their elder son, Jeff Richmond, to the daughter of a politician. With the wedding taking center stage, Ryan is left on the sidelines, which deepens his sense of isolation.
Desperate for connection, he turns to Lisa Winston, a lounge singer who works at the hotel bar. Their budding courtship is blocked by a large age gap and lifestyle differences, so Ryan finds himself navigating his feelings with limited support. In a bid to forge his own path, he experiments with a computer dating service. The questions soon grow odd, culminating in a revelation that the system claims he is an alien. This startling idea sets the stage for an even stranger encounter.
Shortly after, Charles Pinsky and Virginia Camalier approach him with a startling claim: they are aliens, and they created the dating service to locate others like them. They insist that Ryan is their leader and that the coordinates to their home planet lie locked inside his brain, accessible only through a sexual encounter. They further reveal that Ryan’s father’s rotating hotel lounge is actually a disguised spaceship meant to ferry them back to their starry homeland. The weight of their assertions tests Ryan’s skepticism, yet the possibility that he could truly be part of an otherworldly lineage begins to intrigue him. The Camalier family dynamic — including Jenny Camalier, a member of the wedding circle — adds layers of personal stakes to the unfolding drama. Jenny Camalier
As the story progresses, Ryan notices small, unusual abilities that align with what the aliens describe as his species’ traits, such as inhaling helium without the usual effects. This curious talent fuels his curiosity and makes the mystery feel more real, even as he remains unsure of what to believe.
To unlock the coordinates, Ryan agrees to an intimate act with Lisa, hoping it will reveal the location they seek. The moment seemingly reveals the coordinates: B52, a detail that anchors their quest in a concrete target. With the blue moon approaching—the moment the aliens set for departure—Ryan is torn between leaving with them and staying for the life he’s built back on the grounds of his hotel home. The allure of space travel clashes with the emotional pull of Lisa, who begins to reciprocate his feelings, complicating his decision.
The wedding day arrives with a carnival of tension. The aliens crash the reception in the hotel lounge, forcing a dramatic interruption to Jeff Richmond’s ceremony and the celebrations that follow. Meanwhile, Ryan’s father manages to keep the lounge rotation functioning, a critical detail that underscores the tension between human routines and otherworldly disruption. Charles and Virginia begin their countdown, certain that escape is within reach, but an emergency brake that Ryan’s father secretly activated derails their plan. The would-be departure collapses into a scramble across the desert as the group abandons their pursuit of a homeworld and instead turns toward a new, uncertain future—perhaps even a revisit to the Taj Mahal.
In the end, the film leaves the audience with ambiguity. Are Charles and Virginia truly aliens, or are they simply delusional dreamers chasing something that exists only in their imaginations? Ryan’s extraordinary experiences, the strange dating service, and the restless pursuit of a hidden beacon in his brain all converge to blur the lines between science fiction and personal myth, inviting viewers to weigh belief, longing, and the human need for belonging against the vast unknown.

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