Fans eager for more of "The Summer I Turned Pretty" received both good and slightly disappointing news recently regarding the release of a movie that will conclude the series. Following the premiere of the season 3 finale on September 17, 2025, Amazon Prime Video announced that a movie is in development.

Author and showrunner Jenny Han, along with the show's stars Lola Tung (Belly), Christopher Briney (Conrad), and Gavin Casalegno (Jeremiah), appeared on the "Today" show to discuss the finale and the upcoming film. Han revealed that she and co-showrunner Sarah Kucserka have already finished a draft of the script. Han will also be directing the movie.

However, the release date is still up in the air. Han stated, "It's still a little too soon to say… We don't know when it's coming out, but not next year". This means the earliest fans can anticipate the movie is 2027. Given that the film is still in the early stages of development, with the script in its first draft and production yet to begin, a release in 2027 might even be optimistic. A more realistic expectation could be at least two years from now, potentially pushing the premiere to late 2027 or even 2028.

Han explained that the decision to create a movie stemmed from her desire to give the final chapter of Belly's journey "its proper due". She felt that including the epilogue from the book in the series finale would have felt rushed. The movie will focus on "another big milestone" for Belly. While Han remained tight-lipped about specifics, many fans speculate that the film will depict Belly's wedding to Conrad.

The series finale concluded with Belly and Conrad reuniting in Paris, resolving the love triangle that has been central to the story. The movie will likely explore the aftermath of their reunion and delve into their future. Han has also expressed her gratitude to Prime Video for their continued support of her vision and for making it possible to share the final chapter with fans.

While waiting for the movie, fans can speculate about the plot and anticipate which cast members will return. Based on the events of the series and the book series, it's safe to assume that Lola Tung, Christopher Briney, Gavin Casalegno, Sean Kaufman (Steven), and Rain Spencer (Taylor) will be back.