It features an ensemble cast that includes Galvin, Gordon, Platt, Jimmy Tatro, Patti Harrison, Nathan Lee Graham, Ayo Edebiri, Owen Thiele, Caroline Aaron and Amy Sedaris.

Theater Camp had its world premiere at the Sundance Film Festival on January 21, 2023, and was released in the United States on July 14, 2023, by Searchlight Pictures.

In her absence, Joan's son Troy, a professional "business influencer", inherits ownership of AdirondACTS but finds that his personality clashes with those of the theater kids.

Meanwhile, Troy and the camp's chief technician, Glenn, attempt to raise money by having the kids act as servers during a Rotary Club event, with mixed results.

She reveals that she has been absent because she has been hired as a cruise ship performer; the revelation infuriates Amos, who resents feeling left behind in their partnership and refuses to listen to Rebecca-Diane's concerns that her career prospects are fading away.

Realizing that the sale will only take place if the bank forecloses on AdirondACTS, Troy invites the "Founding Ballers", a group of popular financial influencers, to the performance of Joan, Still, hoping to get much-needed investments.

The play is thrown into jeopardy when Darla, the lead, suddenly departs for a prime movie role, but she is replaced by Glenn, who seizes the opportunity to finally show off his talent.

Rebecca-Diane finds success with her cruise ship gig until she accidentally burns down the vessel trying to conduct a séance, while Glenn departs the camp to play Elphaba in Wicked at a Saratoga Springs theater.

In June 2022, it was reported that Molly Gordon and Nick Lieberman would direct the film from a screenplay they wrote alongside Ben Platt and Noah Galvin.

Gordon, Platt, Galvin, Jimmy Tatro, Patti Harrison, Ayo Edebiri, Amy Sedaris, Caroline Aaron, Nathan Lee Graham, Owen Thiele, Alan Kim, Luke Islam, Jack Sobolewski, Kyndra Sanchez, Quinn Titcomb, Madisen Lora, Bailee Bonick, Donovan Colan, Vivienne Sachs, and Alexander Bello were set to star, and Will Ferrell would serve as a producer under his Gloria Sanchez Productions banner.