Jesse Eisenberg calls The Debut autobiographical, even though Julianne Moore plays its central character. The actor, writer and director presented the film at the San Sebastian Film Festival on September 23 and again discussed the community-theater experience behind it. The movie is about Mona Friedman, a shy New Jersey housewife who unexpectedly gets a small role in a local musical.
That description does not sound like Eisenberg’s life on its face. His point is about what happens after Mona walks into the rehearsal room. She finds a place where people see her, takes her tiny part very seriously and lets acting change far more than her evenings. Eisenberg says a similar feeling drew him into theater when he was young.
Why he calls the story personal
At the Toronto festival earlier this month, Eisenberg gave a direct account of what community theater did for him. The Associated Press recorded him saying:
“I felt invisible and I hated everything. And then I started community theater.” — Jesse Eisenberg
He said the film takes place near the New Jersey home where he grew up in 1990. He also joked that he became so committed to theater that it took over his life. Mona is not meant to be a literal portrait of the young Eisenberg. Her need to belong and her sudden obsession with acting are the autobiographical parts.

Eisenberg wrote Mona for Moore. At San Sebastian, he spoke about the effect watching her work had on his ideas about acting, and about balancing a personal voice with the needs of a group production. Paul Giamatti plays Jerry, the community-theater director who pushes Mona but also wants to control the show. The relationship between those two characters gives the film its conflict.
Julianne Moore turns a small role into the center of the film
In the story, Mona begins as a newcomer with a minor part. She becomes convinced that protecting the integrity of that part is worth fighting for—even when it puts her at odds with Jerry. Eisenberg wrote the screenplay, directed the movie, appears in its cast and wrote songs for the fictional musical within it.
The film also stars Halle Bailey, Cara Buono, Craig Bierko and Bernadette Peters among its announced ensemble. The San Sebastian festival lists a 105-minute runtime. A24 has scheduled the US theatrical release for December 11, 2026. This week’s festival presentation is not the nationwide opening.
The story is funny, but its starting point is simple: a person feels overlooked, joins a small theater group and suddenly cares about something so much that it disrupts the rest of life. Our The Debut film page has the confirmed cast and release details; this piece explains why its writer calls Mona’s unlikely journey his own.






