Amazon MGM Studios and MRC have cast Murder on the Orient Express actor Tom Bateman as the male lead opposite Lili Reinhart in the upcoming romantic comedy The Love Hypothesis, based on Ali Hazelwood’s bestselling novel.
Bateman will portray Dr. Adam Carlsen, a brilliant but notoriously moody professor, who enters a fake dating arrangement with Olive Smith (Reinhart), a hardworking biology PhD candidate. The setup forces both characters to challenge their long-held beliefs about love, relationships, and emotional vulnerability.
Claire Scanlon (Set It Up) is directing the feature, with a screenplay by Sarah Rothschild (The Sleepover). Reinhart also serves as an executive producer alongside Catherine Hagedorn and author Ali Hazelwood. Elizabeth Cantillon will produce the film through her banner, The Cantillon Company.
The Love Hypothesis, originally published in 2021 by Berkley (an imprint of Penguin Random House), became an international sensation. The novel spent ten months on the New York Times bestseller list, was published in 40 countries, and was named Amazon’s Best Romance of the Year.
Bateman, a frequent collaborator with Kenneth Branagh, is known for roles in Death on the Nile, Thirteen Lives, and Peacock’s Based on a True Story. He is also set to star in Nia DaCosta’s Hedda and Branagh’s upcoming thriller The Last Disturbance of Madeline Hynde.
With a bestselling source material and star-studded leads, The Love Hypothesis is set to be one of 2025’s most anticipated romantic comedies.
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