Fans of Ali Hazelwood’s bestselling romance novel The Love Hypothesis will soon see its beloved characters come to life on screen. Prime Video has announced that the film adaptation will premiere on 23 September in more than 240 countries and territories worldwide.

Starring Lili Reinhart as the ambitious Ph.D. candidate Olive Smith and Tom Bateman as the intimidating yet enigmatic professor Adam Carlsen, the romantic comedy follows a fake-dating arrangement that gradually develops into something far more complicated. What begins as Olive’s attempt to convince her best friend that she has moved on from a crush soon turns into an unexpected journey that challenges her views on love, relationships, and risk.

Directed by Claire Scanlon and written by Sarah Rothschild, the film is based on Hazelwood’s New York Times bestselling novel, which became a sensation among romance readers and BookTok fans. Before its publication, the story originated as a fan fiction inspired by Star Wars characters Rey and Kylo Ren, eventually evolving into one of the most successful contemporary romance novels of recent years.

Alongside Reinhart and Bateman, the cast includes Rachel Marsh, Nicholas Duvernay, Jaboukie Young-White, and Arty Froushan. With its mix of academic rivals, fake dating, and slow-burn romance, The Love Hypothesis is poised to bring one of the most beloved modern romance stories to a global audience when it arrives this fall.