Just hours after the climactic series finale of "The Summer I Turned Pretty" aired, Amazon Prime Video announced that Belly Conklin's story is not over. A movie adaptation is officially in the works, promising to deliver a final chapter to the beloved coming-of-age story.

Jenny Han, the author of the "The Summer I Turned Pretty" book series and the showrunner for the Prime Video series, will be writing and directing the film. Han expressed that the movie is necessary to give proper closure to Belly's journey. "There is another big milestone left in Belly's journey, and I thought only a movie could give it its proper due,” Han stated. She also conveyed her gratitude to Prime Video for their continued support of her vision.

While specific plot details are currently under wraps, it's expected that the movie will center around Belly and Conrad's wedding. The film will likely check in with other characters such as Taylor, Steven, and Denise, and Jeremiah.

The series finale saw Belly and Jeremiah calling off their wedding, and Conrad appearing at the airport as Belly heads to Paris. This differed from the books, where Conrad was not at the airport. The third book, "We'll Always Have Summer", concludes with Belly and Conrad reconciling through letters while she is abroad, and eventually marrying after reconnecting at her college graduation. While the show also sees Belly and Conrad end up together, it doesn't conclude with a wedding, which disappointed some viewers.

Han has spoken about the challenges of adapting her novels for television, particularly balancing fan expectations with the opportunities that the television format offers. She noted that television allows for deeper exploration of supporting characters and relationships. However, she emphasized that the central love triangle remains the guiding force of the adaptation.

Han has also addressed the passionate reactions from fans and how meaningful it has been to see viewers connect with the characters, especially Belly’s journey of self-discovery. The success of the series, according to Han, is due to its capturing the intensity of first love and growing up, which resonates with audiences across generations.

Han's work often features Asian American young women, which she is proud of. She feels it's important to tell stories about young people with respect and to honor their experiences and points of view.

The release date and whether the movie will have a theatrical or streaming release are still unknown.