The Summer I Turned Pretty film brings new milestone in Belly’s journey on Prime Video

The final episode of the third season of The Summer I Turned Pretty hit Prime Video screens on Wednesday, September 17, 2025, but protagonist Belly’s story doesn’t end there.

The streaming platform revealed, during a ceremony in Paris, that the narrative will continue in a feature film written and directed by creator Jenny Han.

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This decision comes after the series’ resounding success, amassing millions of global views and establishing itself as a phenomenon among young audiences.

• The third season drew 25 million viewers in its first week.
• The second season doubled the previous season’s audience in the first three days.
• The 2022 original production set viewership records during its debut weekend.

The Paris event brought together the main cast, including Lola Tung and Christopher Briney, who posed for photos alongside Han, celebrating the milestone.

Literary origins and television adaptation

The Summer I Turned Pretty series is based on Jenny Han’s bestselling trilogy, originally published between 2009 and 2011. The books explore coming-of-age themes in an idyllic beach setting, blending romance and family drama. Han, also known for To All the Boys I’ve Loved Before, took on the showrunner role to ensure fidelity to the essence of the works.

The television adaptation began in 2022, with the first season focusing on Belly’s annual summers at Cousins Beach. Each episode captures moments of transition, from adolescence to adulthood, with sharp dialogue and a soundtrack featuring pop hits of the era. Filming locations in Massachusetts contributed to the sunny, nostalgic visuals that captivated viewers.

Han noted in past interviews that the transition to the screen allowed for the expansion of book elements, such as the dynamics between the families’ mothers. The series maintained a balance of lightness and emotional depth, avoiding clichés common in young adult productions.

The initial success led to quick renewals, with the second season in 2023 intensifying the central love triangle. The third, released weekly starting in July 2025, raised the stakes with twists that set the stage for the film.

Behind the scenes of the Paris announcement

The series’ wrap-up ceremony took place on the red carpet at an exclusive Paris event, chosen to symbolize the third season’s climactic storyline. Jenny Han took the stage alongside Prime Video executives to reveal the project, expressing gratitude for the platform’s partnership.

Lola Tung, who plays Belly, shared photos on social media showcasing the festive atmosphere, with beach-themed decorations and projections of iconic scenes. Christopher Briney and Gavin Casalegno, the Fisher brothers, also attended, exchanging hugs with the production team.

The moment marked the end of series filming, but the excitement for the continuation was palpable. Han explained that the film format allows for a broader closure, exploring unresolved arcs from the finale.

Details like the start of filming remain under wraps, but insiders indicate the main cast will return in full. The production will prioritize similar locations to maintain visual continuity.

• The event gathered over 200 guests, including crew and international press.
• Han will direct her first feature film, building on her series experience.
• Official photos captured cast interactions, reinforcing bonds formed over three years.

Cast and dynamics that won over audiences

Lola Tung brings Belly Conklin to life, infusing the character with vulnerability and strength as she evolves from a naive girl to a decisive woman. Her performance in the third season highlighted emotional confrontations, especially during the protagonist’s 22nd birthday.

Christopher Briney, as Conrad Fisher, embodies the introspective and troubled brother, whose romantic choices spark heated fan debates. Gavin Casalegno, playing Jeremiah, balances charisma and insecurity, creating an ideal counterpoint in the love triangle.

Other key names include Jackie Chung as Laurel, Belly’s mother, and Rachel Blanchard as Susannah Fisher, whose absence in the story evolves into a family legacy. Sean Kaufman, as Steven, adds humor and realism to secondary arcs.

Kyra Sedgwick joins the third season as a new maternal figure, expanding intergenerational relationships. Rain Spencer and Isabella Briggs complete the friend group, emphasizing enduring female bonds.

The cast’s chemistry, forged on sunny sets, spills onto the screen, with improvisations Han incorporated into the script. Tung mentioned in promotional appearances that filming created memories akin to the story’s.

The confirmed return for the film promises more interactions, possibly exploring the characters’ adult phases. Briney and Casalegno expressed excitement in live streams, suggesting dynamics will evolve organically.

Core themes shaping the narrative

The Summer I Turned Pretty dives into first love as a catalyst for change, with Belly navigating choices that shape her identity. The triangle with the Fisher brothers goes beyond romance, reflecting dilemmas of loyalty and self-discovery.

Mother-child relationships form the emotional core, with Susannah and Laurel representing contrasting models of motherhood. The series tackles loss and renewal, using summer as a metaphor for fleeting transitions.

Female friendships serve as an anchor, with Belly and Taylor sharing confidences that transcend romance. Multigenerational elements add depth, showing how adults grapple with past regrets.

The soundtrack, featuring Taylor Swift and Sabrina Carpenter, amplifies emotions, syncing songs with beach montages and parties. Han selected hits that evoke nostalgia, connecting generations of viewers.

The story’s timeline progresses annually, culminating in adulthood in the third season. The film will extend this arc, focusing on milestones like weddings or careers, without revealing premature spoilers.

• The love triangle evolves from teenage flirtations to mature decisions.
• Family ties explore emotional legacies passed across generations.
• Friendships highlight female solidarity amid romantic disappointments.

Global impact and viewership numbers

Since its 2022 debut, the series has ranked among Prime Video’s most-watched, with peaks in markets like the United States, Brazil, and the United Kingdom. The third season held the Top 1 spot in Brazil for over two months, driven by weekly episodes.

Internal data shows the finale drew record views, surpassing predecessors in engagement. Social media logged millions of interactions, with hashtags like #BellyChooseConrad trending globally.

The phenomenon spurred merchandise adaptations, from collectible books to themed clothing. Han’s trilogy sold millions more copies post-series, reviving literary interest.

In Europe, the Paris event generated extensive coverage, with fans packing virtual panels. In Brazil, precise dubbing and accessible subtitles broadened the reach to diverse audiences.

The film continuation aims to sustain this momentum, with marketing focused on emotional teasers. Prime Video executives highlight audience retention as a key factor for the expansion.

Behind-the-scenes curiosities

Filming took place on Massachusetts beaches and Wilmington studios, with the crew navigating variable weather to capture authentic summers. Tung learned to surf for specific scenes, adding realism to aquatic sequences.

Han collaborated with Sarah Kucserka on the third season’s script, a partnership extending to the film. Briney revealed on a podcast that ad-libs enhanced romantic dialogues, approved by Han on set.

The production embraced diversity in casting, with Asian-American actors reflecting Belly’s heritage. Promotional events included CCXP panels, where the cast engaged with Brazilian fans.

• Tung and Briney shared off-set hobbies like hiking, strengthening on-screen chemistry.
• Han drew from personal summers for campfire and dance scenes.
• The crew used drones for aerial shots of Cousins Beach, creating iconic visuals.

Franchise expansion on streaming

Prime Video positions the film as the final installment, akin to spin-offs of other hit series. The platform plans bundles with full seasons to attract new viewers.

Han expressed interest in potential spin-offs but focuses on the film as the definitive closure. Her directorial role marks an evolution from showrunner to filmmaker, backed by Amazon MGM Studios.

Fans speculate about cameos from secondary actors like Tom Everett Scott, expanding the universe. Global distribution will ensure simultaneous accessibility, maximizing initial views.

The project reinforces Prime Video’s commitment to young adult content, alongside titles like Outer Banks. Han’s vision maintains authenticity, avoiding generic formulas.

• The film follows directly from the series finale, without initial time jumps.
• Production begins in late 2025, with a release slated for 2026.
• Main cast confirmed, with possible additions for adult arcs.