Ali Hazelwood fans, unite. The Love Hypothesis is becoming a movie.

The film began rounds of casting mid-July 2025. Hazelwood’s book arrived on shelves Sept. 14, 2021thanks to Berkley Books. The author has confirmed that the book began as fanfiction for the Star Wars characters Rey and Kylo Ren.

Read more about The Love Hypothesis movie and the team behind it below:

When does The Love Hypothesis movie come out?

The film will arrive exclusively on Prime Video for streaming Sept. 23, 3036.

Who will be in The Love Hypothesis movie?

Deadline first broke the news of Lili Reinhart coming aboard to star as PhD candidate Olive Smith in addition to executive producing the film. We then exclusively reported that Tom Bateman (Murder on the Orient Express) landed the male lead role of professor and Dr. Adam Carlsen, the following day.

Additional cast first reported by Deadline in August includes Rachel Marsh (Adults), Nicholas Duvernay (The White Lotus), Jaboukie Young-White (Companion) and Arty Froushan (Daredevil: Born Again). Marsh will play Anh, Young-White will play Malcolm, Duvernay will play Jeremy and Froushan will play Tom.

Who else is behind The Love Hypothesis film?

Claire Scanlon (Set It Up) is directing the film from a script by Sarah Rothschild (The Sleepover). Elizabeth Cantillon (The Girl in the Spider’s Web, Charlie’s Angels) is producing, with Reinhart, Catherine Hagedorn, and author Hazelwood executive producing the adaptation for Amazon MGM Studios and MRC.

What is The Love Hypothesis film about?

The romantic comedy follows Olive and her professor Dr. Carlsen as they enter a fake relationship to put their theories about love to the test. Dr. Carlsen is described as a “hotshot professor” and “well-known” tyrant.

Is there a trailer for The Love Hypothesis?

Yes, Prime Video released the first teaser trailer out of Obsessed Fest.

Does Ali Hazelwood have other books?

Yes, Hazelwood is known for several of her other books, including Love, Theoretically, Love on the Brain, Loathe to Love You, Stuck With You, Below Zero, Deep End, Bride, Problematic Summer Romance, Under One Roof, Not in Love and more.

Deadline broke the news that Love, Theoretically will be adapted for Amazon MGM Studios with Colleen Hoover producing and Sofia Alvarez directing.

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