The viral BookTok sensation The Love Hypothesis is finally making its way to the screen. Amazon MGM Studios and MRC are bringing author Ali Hazelwood‘s beloved fake-dating rom-com to life, and the project has already generated significant buzz thanks to its star-studded cast and unique behind-the-scenes connection to the Star Wars universe.
Here is everything you need to know about the movie adaptation.
Release Date and Where to Watch
The Love Hypothesis will premiere exclusively on Prime Video on September 23, 2026. The streaming release comes as part of Prime Video’s fall slate, which continues the platform’s focus on romance and book adaptations.
A promotional teaser video released on social media on June 10, 2026, showed Lili Reinhart (Olive Smith) ordering a sugary coffee treat and asking for sprinkles, with the cup displaying the numbers “9.23” to tease the release date. First-look photos of Reinhart and Tom Bateman were also released the same day.
The Cast
The casting for The Love Hypothesis has been a major talking point among fans of the book. Here is the full main cast:
- Lili Reinhart (Riverdale) as Olive Smith, a brilliant third-year biology PhD candidate at Stanford University
- Tom Bateman (Van der Valk) as Dr. Adam Carlsen, a young, intimidating hotshot professor known for being hard on students
- Rachel Marsh (Adults) as Ahn, Olive’s best friend
- Nicholas Duvernay (The White Lotus) as Jeremy, Olive’s crush
- Jaboukie Young-White (Companion) as Malcolm
- Arty Froushan (Daredevil: Born Again) as Tom
The Reylo Connection
One of the most fascinating details about The Love Hypothesis is its origin. The novel began as a Reylo fanfiction—a story inspired by the relationship between Rey (Daisy Ridley) and Kylo Ren (Adam Driver) from the Star Wars sequel trilogy.
This fact gained even more significance when Tom Bateman was cast as Adam Carlsen. Bateman is married to Daisy Ridley in real life, meaning the husband of the actress who inspired the fanfiction is now playing the male lead in the official adaptation. Fans have enthusiastically noted this full-circle moment on social media.
The Creative Team
Claire Scanlon (Set It Up) directs the film from a screenplay by Sarah Rothschild (The Sleepover). Elizabeth Cantillon (The Girl in the Spider’s Web, Charlie‘s Angels) serves as producer.
Lili Reinhart, Catherine Hagedorn, and author Ali Hazelwood serve as executive producers on the project.
In a statement accompanying the project announcement, Hazelwood expressed her excitement: “Honestly, I still can’t believe this is happening. Elizabeth Cantillon, Claire Scanlon, and Lili Reinhart have all created, produced, or starred in works that I’m absolutely feral about, and I am beyond honored that they’re choosing to bring their talent to this project.”
The Story: What Is The Love Hypothesis About?
The romantic comedy follows Olive Smith, a third-year PhD candidate at Stanford University who is dedicated to her research and her future in academia. When her best friend Ahn develops feelings for Olive’s ex-crush Jeremy, Olive impulsively kisses the first man she can find to prove she has moved on.
That man turns out to be Dr. Adam Carlsen—a young, brilliant, and notoriously intimidating biology professor. What begins as a desperate act of friendship quickly spirals into a fake dating arrangement with rules, boundaries, and a mutually beneficial agreement.
As the fake relationship continues, the lines between performance and reality begin to blur. Olive is forced to test her most daunting hypothesis yet: that love might actually be worth the risk.
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Promotion and Fan Events
Reinhart and Bateman will appear at Prime Video‘s inaugural Obsessed Fest on June 27, 2026, alongside cast and creators of other popular romance adaptations like Off Campus and Every Year After. The immersive fan event is expected to generate additional buzz for the September release.
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