Basic Information
| Field | Details |
|---|---|
| Full Name | Petrine Day “Trini” Mitchum |
| Also Known As | Trina Mitchum, Petrine Mitchum |
| Birth Date | March 3, 1954 |
| Birthplace | Los Angeles, California, USA |
| Occupation | Actress, producer, writer, director |
| Years Active | 1972–present (intermittent) |
| Notable On-Screen Appearance | The Mechanic (1972) – “3rd Hippie” |
| Notable Behind-the-Scenes Work | Out of Gas (1987, short), This Old Horse (2015), James Stewart, Robert Mitchum: The Two Faces of America (2017) |
| Parents | Robert Mitchum (1917–1997), Dorothy Clements Spence Mitchum (1919–2014) |
| Siblings | James “Jim” Mitchum (b. 1941), Christopher “Chris” Mitchum (b. 1943) |
| Marital Status | Private; unverified reports of a brief 1972 marriage |
| Children | None confirmed |
| Public Presence | Low-profile; limited public and social media activity |
| Distinguishing Note | Known for preserving and honoring the Mitchum family legacy |
| Clarification | Occasional discrepancies appear in published birth years; 1954 is used here |
Early Life and Roots
Born into a household where film scripts and dinner conversations mingled, Trini Mitchum arrived on March 3, 1954, as the youngest of three. The daughter of Robert Mitchum—an enduring icon who logged over 100 films—and Dorothy Spence Mitchum, she grew up with a front-row seat to old Hollywood’s glow. Yet, behind the klieg lights was a family determined to keep its children grounded. Between city life in Los Angeles and stretches of rural calm (ages 8 through 14) on family farms, Trini learned early how to step both into and out of the frame.
Her childhood was a study in balance: the allure of studio lots and premieres contrasted with privacy as a house value, not a hedge. The Mitchum home was a creative crucible, but also a sanctuary. That duality would come to define Trini’s trajectory.
Stepping in Front of the Camera (1972)
At 18, Trini took a brief detour into acting. In 1972, she appeared in The Mechanic, credited as “3rd Hippie,” a blink-and-you-miss-it role that nonetheless marked her entry into the industry. Rather than chase screen time, she soon pivoted toward the work that often goes unheralded but shapes stories at the root: writing, developing, and producing.
Behind the Scenes: Writing and Producing
In 1987, Trini wrote and directed the sly, affectionate short Out of Gas, a mock sequel to her father’s noir landmark, Out of the Past. Airing during a Saturday Night Live broadcast that same year—and featuring Jane Greer reprising her iconic role—the film captured Trini’s knack for inventive homage. It was part valentine, part wink: a daughter conversing with cinematic history while bending it toward her own creative voice.
Her later credits underscore that impulse to preserve and reinterpret. She produced the documentary This Old Horse (2015) and contributed to projects like This Is Orson Welles (2015). In 2017, she served as associate producer on James Stewart, Robert Mitchum: The Two Faces of America, a thoughtful double-portrait that juxtaposed two American screen myths: the flinty poet of noir and the homespun idealist.
Though not a flurry of credits, her résumé traces a consistent arc—toward legacy, toward curation, toward projects where personal history intersects with cultural memory. Reports have also credited her with script reading and story work in development contexts, a skill set that prizes discernment over limelight.
Family Constellation
The Mitchum tree is a constellation of faces familiar to the silver screen. Robert Charles Durman Mitchum (1917–1997), the family’s North Star, left a filmography so vast it’s more topography than list—sprawling across noir, Westerns, and war dramas. Dorothy—his partner from March 15, 1940, for 57 years until his death—anchored the home, smoothing the jagged edges that fame can carve.
Trini’s brothers both chose the actor’s path. Jim Mitchum (b. 1941) appeared in Thunder Road (1958) and a host of later films. Christopher “Chris” Mitchum (b. 1943) co-starred with John Wayne in Big Jake (1971), then widened his compass into politics. Their children—Bentley, Carrie, and others—extended the performing branch into a third generation. Uncles, aunts, and cousins—like actor John Mitchum and actress Julie Mitchum—add depth to a family story written in studio lights and long shadows.
A Low-Profile Presence in a Loud Era
If celebrity is a megaphone, Trini favors the human voice. In 2024 and 2025, her name surfaced mostly in retrospectives, fan-made video essays, and social media tributes—quiet echoes rather than headlines. There are no splashy announcements, no long interviews, no grand tours. It fits the pattern: she chooses where to stand, and often it’s just behind the camera, just outside the frame, where stewardship lives.
Occasional mentions allude to a brief marriage in 1972 and subsequent privacy, with no confirmed children. Financial guesses drift online, but none are substantiated. What can be said with confidence: hers is a life tuned to meaning rather than metrics.
Extended Timeline
| Year/Date | Milestone | Notes |
|---|---|---|
| March 3, 1954 | Birth | Petrine Day Mitchum, Los Angeles, California |
| 1962–1968 | Formative years | Splits time between city life and family farms, ages 8–14 |
| 1972 | On-screen debut | The Mechanic; credited as “3rd Hippie” |
| 1987 | Writing/directing | Out of Gas airs during an SNL broadcast; Jane Greer reprises role |
| July 1, 1997 | Family loss | Death of Robert Mitchum at 79 |
| 2011 | Documentary appearance | A Night at the Movies: Merry Christmas! (as herself) |
| 2014 | Family loss | Death of Dorothy Spence Mitchum at 94 |
| 2015 | Producing | This Old Horse; involvement with This Is Orson Welles |
| 2017 | Legacy tribute | Associate producer, James Stewart, Robert Mitchum: The Two Faces of America |
| 2024–2025 | Retrospectives | Primarily featured in family histories and commemorations |
Selected Filmography and Credits
| Year | Title | Role/Capacity | Format |
|---|---|---|---|
| 1972 | The Mechanic | Actress (3rd Hippie) | Feature film |
| 1987 | Out of Gas | Writer/Director | Short (aired on SNL) |
| 2011 | A Night at the Movies: Merry Christmas! | Herself | TV documentary |
| 2015 | This Old Horse | Producer | Documentary |
| 2015 | This Is Orson Welles | Appearance | Documentary |
| 2017 | James Stewart, Robert Mitchum: The Two Faces of America | Associate Producer | TV documentary |
The Mitchum Family at a Glance
| Name | Relation | Lifespan/Birth | Notable Notes |
|---|---|---|---|
| Robert Mitchum | Father | 1917–1997 | Actor; over 100 films; Oscar nominee for The Story of G.I. Joe |
| Dorothy Spence Mitchum | Mother | 1919–2014 | Family anchor; married 57 years |
| James “Jim” Mitchum | Brother | b. 1941 | Actor; appeared in Thunder Road |
| Christopher “Chris” Mitchum | Brother | b. 1943 | Actor; Big Jake; later political career |
| Bentley Mitchum | Nephew | b. 1967 | Actor |
| Carrie Mitchum | Niece | b. 1965 | Actress |
| John Mitchum | Paternal Uncle | 1919–2001 | Actor; Westerns |
| Julie Mitchum | Paternal Aunt | 1914–2003 | Actress |
On Money and Measures of Success
Speculation about Trini’s finances exists, though none of it is confirmed. More telling than numbers is the consistency of her choices: projects that honor lineage, emphasize craft, and resist the easy glare of constant publicity.
Presence in the 2020s
In an age when self-promotion can be a second profession, Trini remains notably private. 2024–2025 mentions cluster around centennial reflections on Robert Mitchum, fan posts that rescue old premiere photos from scrapbooks, and short video portraits of the Mitchum legacy. It’s a candle-lit gallery rather than a neon marquee—deliberate, curated, personal.
FAQ
Is Trini Mitchum related to Robert Mitchum?
Yes, she is Robert Mitchum’s daughter and the youngest of his three children.
When was Trini Mitchum born?
She was born on March 3, 1954, in Los Angeles, California.
Did Trini Mitchum have a major acting career?
No, her on-screen roles were minor; her more notable work is behind the camera as a writer, producer, and director.
What is Out of Gas (1987)?
It’s a short film she wrote and directed, a playful homage to Out of the Past, which aired during a Saturday Night Live broadcast.
Are there confirmed details about her marriage or children?
No; reports of a brief 1972 marriage exist, but there are no confirmed details or confirmed children.
What projects has she produced?
Highlights include This Old Horse (2015) and the 2017 TV documentary James Stewart, Robert Mitchum: The Two Faces of America.
Why isn’t she frequently in the news?
She keeps a low public profile, preferring private life and selective creative work tied to family legacy.
Did she grow up in Hollywood?
Yes, primarily in Los Angeles, with meaningful stretches of farm life during her childhood that contributed to a grounded upbringing.
Are there social media profiles for her?
None are confirmed; most references to her online are fan-made retrospectives and family tributes.
Is her birth year ever listed differently?
Occasional discrepancies appear publicly; this profile uses 1954.