After years of fan casting, wish lists, and endless anticipation, The Love Hypothesis is finally making its way from page to screen. Prime Video has released the first teaser for the adaptation of Ali Hazelwood’s bestselling STEM romance, giving readers their first look at Olive Smith and Adam Carlsen—and yes, it already has fans swooning. From the fake-dating setup and beloved book moments teased in the trailer to the star-studded cast and everything we know about the adaptation so far, here’s everything you need to know before The Love Hypothesis premieres this fall.

Trailer

Prime Video’s first teaser for The Love Hypothesis captures the playful charm and slow-burn chemistry that made Ali Hazelwood’s bestselling novel a BookTok favorite. The trailer introduces Ph.D. candidate Olive Smith and the intimidating Dr. Adam Carlsen as they stumble into an unlikely fake relationship, teasing fan-favorite moments while blending witty humor, heartfelt romance, and just enough scientific flair. Without giving away the story’s biggest emotional beats, the teaser promises a faithful adaptation of the beloved STEM romance.

Release Date

The Love Hypothesis premieres exclusively on Prime Video on September 23. Based on Ali Hazelwood’s bestselling romance novel, the highly anticipated adaptation will be available to stream globally, giving fans everywhere the chance to watch Olive and Adam’s fake-dating romance come to life.

Main Cast

• Lili Reinhart as Olive Smith
• Tom Bateman as Dr. Adam Carlsen

Supporting Cast

• Rachel Marsh as Ahn
• Nicholas Duvernay as Jeremy
• Jaboukie Young-White as Malcolm
• Arty Froushan as Tom

What Is The Love Hypothesis About?

The Love Hypothesis follows Olive Smith, a Ph.D. candidate who impulsively convinces her best friend that she’s over her ex by pretending to date Dr. Adam Carlsen—a notoriously brilliant but intimidating professor. What begins as a fake relationship soon grows more complicated as Olive and Adam spend more time together, forcing them to question whether their carefully crafted arrangement is starting to feel a little too real. Filled with witty banter, lovable side characters, and plenty of heart, Ali Hazelwood’s bestselling romance combines fake dating, academic rivals, and slow-burn chemistry into an irresistible STEM rom-com.

How Closely Does the Adaptation Follow the Book?

From everything we’ve seen so far, The Love Hypothesis appears to be a remarkably faithful adaptation of Ali Hazelwood’s beloved novel. The teaser recreates several fan-favorite moments—including Olive and Adam’s unforgettable first kiss and the iconic “bridal lift” scene—while preserving the book’s fake-dating premise, STEM setting, and signature blend of witty banter and slow-burn romance. We’ve also discovered that the film is rated R, making us believe that some of the steamier scenes we love, might be included. Although some supporting characters have been reimagined and readers can likely expect a few changes to streamline the story for film, the trailer suggests Prime Video is committed to capturing the heart, humor, and chemistry that made The Love Hypothesis a romance sensation.