It started as a Reylo fanfic. In 2018, Ali Hazelwood posted Head over Feet – a story imagining a romance between Rey and Kylo Ren from Star Wars – on Archive of Our Own. She reworked it into a contemporary romance about two scientists, published it in 2021, and watched it become a New York Times bestseller. Now Prime Video brings the film on screens. It was mostly filmed in Montreal, Quebec, with principal photography running from July 11 to August 29, 2025.
The Love Hypothesis is directed by Claire Scanlon from a screenplay by Sarah Rothschild. Produced by Elizabeth Cantillon and MRC's Bisous Pictures. Lili Reinhart plays Olive Smith, a biology PhD candidate who, to convince her best friend she has moved on from a crush, impulsively kisses her intimidating professor Adam Carlsen – played by Tom Bateman. The two agree to a fake relationship with a list of ground rules. What begins as a hypothesis becomes something real. The cast also includes Rachel Marsh, Jaboukie Young-White, Nicholas Duvernay and Arty Froushan.
Reinhart announced the wrap on TikTok in a video that went immediately viral – she and Bateman reenacting Jim and Michael's goodbye scene from The Office, Bateman lip-syncing through fake tears.

The most important confirmed location is Concordia University's Loyola Campus at 7141 Sherbrooke Street West – a fact confirmed by Concordia itself, which announced that Prime Video had transformed parts of Loyola into Stanford University for the production.
The transformation went considerably deeper than changing signs outside buildings. Production designer Elise de Blois – herself a Concordia graduate – returned to the campus to reshape familiar spaces for Olive and Adam's academic world. The cafeteria was converted for the production. A large library environment was created to resemble the kind of space you might find at a university like Stanford. The Department of Biology actively assisted the filmmakers – particularly valuable for a film centred on scientists and graduate research rather than a conventional college romance with little interest in what its characters actually study.
Viewers watching Olive navigate what appears to be Stanford are looking at a university more than 2,500 miles away in Montreal. The corridors, the campus buildings, the academic environment – all Loyola, dressed as California.
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Montreal was not the only university used to build Stanford. The production filmed for approximately a week at the California Institute of Technology in Pasadena, turning another real scientific institution into part of Olive's fictional campus.
Caltech's student newspaper confirmed filming at multiple locations across the university – including Kerckhoff Laboratories, Bechtel Mall and the Caltech Hall Pond. Caltech officials explained that productions regularly approach the university when they need architecture capable of representing another prestigious college.
The Love Hypothesis is streaming on Prime Video from September 23, 2026.

Cinephile Tourist // Concordia University // Caltech Tech Newspaper // IMDb
© Amazon Content Services LLC // Photo Philippe Bossé