‘The Love Hypothesis’ Trailer Turns a Fake Relationship Into Prime Video’s Next Big Bookish Romance

Ali Hazelwood has built one of the biggest names in contemporary romance fiction on the strength of STEM heroines and slow-burn academic tension, and her breakout novel is finally getting the screen treatment fans have been waiting for. ‘The Love Hypothesis‘ spent months atop bestseller lists after its 2021 release, and its long-rumored film adaptation has been one of the most anticipated book-to-screen projects in the romance space.

That anticipation reached a new peak this week with the release of a fresh trailer, following an earlier teaser that first debuted at Prime Video’s inaugural Obsessed Fest in Los Angeles back in June. The streamer used that event, part of its new Obsession Is In Session initiative celebrating fandom culture, to give fans their very first look at the film.

Lili Reinhart leads the cast as Olive Smith, a brilliant Ph.D. candidate whose academic focus gets upended the moment she impulsively kisses Adam Carlsen, the campus’s notoriously intimidating professor, played by Tom Bateman. What begins as a spur-of-the-moment scheme to convince her best friend Ahn, played by Rachel Marsh, that she’s moved on from her crush Jeremy, played by Nicholas Duvernay, quickly spirals into something far messier than either Olive or Adam bargained for.

The new footage leans into that setup with a distinctly playful, science-obsessed framing. Presented like an old-fashioned instructional film, the trailer opens with a narrator explaining how molecules stay in constant motion, colliding and vibrating until they find a match, using that metaphor as a stand-in for Olive and Adam’s unlikely spark. That kiss, witnessed by Ahn from a distance, sets their carefully negotiated fake relationship into motion, complete with rules, boundaries, and an arrangement both characters insist is strictly professional.

Naturally, professional distance doesn’t last long. Earlier trailer footage showed Adam warning Olive mid-scheme that her friends were watching from the balcony and that a kiss was strategically necessary, a moment that captures the push-and-pull tone Hazelwood’s fans have come to expect from the source material.

Claire Scanlon, known for directing ‘Set It Up’ and ‘The People We Hate at the Wedding,’ takes the helm for this adaptation, working from a screenplay written by Sarah Rothschild. Jaboukie Young-White and Arty Froushan round out the supporting cast, joining a production handled by MRC and the Cantillon Company, with Elizabeth Cantillon producing.

Alongside the trailer, Prime Video also unveiled new artwork for a movie tie-in edition of Hazelwood’s original novel, featuring Reinhart and Bateman as Olive and Adam on the updated cover. It’s a marketing push clearly designed to capture both longtime readers of the book and newcomers discovering the story for the first time through the film.

Given how much buzz Hazelwood’s novels have generated across BookTok and romance reading communities in recent years, expectations for this adaptation are running high, particularly around whether Reinhart and Bateman can capture the same chemistry that made Olive and Adam’s dynamic so beloved on the page. Early reactions to the teaser suggest fans are cautiously optimistic, even as some have debated whether Bateman fully embodies the intimidating professor energy readers pictured.

‘The Love Hypothesis’ streams globally on Prime Video starting September 23, giving fans of the novel just a few more weeks to see whether this adaptation lives up to the romance that made Hazelwood a bestselling phenomenon.

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