The Love Hypothesis movie cast, release date, how to watch on Prime Video, and more

Key takeaways

The Love Hypothesis streams globally on Prime Video on September 23.
Lili Reinhart and Tom Bateman star as two scientists who end up in a fake relationship.
The film is based on Ali Hazelwood's New York Times bestselling romance novel.

Prime Video has revealed first-look images and the release date for the highly anticipated movie The Love Hypothesis.

Based on Ali Hazelwood’s bestselling novel, the upcoming rom-com stars Lili Reinhart and Tom Bateman as two scientists who end up in a fake relationship.

Here’s everything you need to know about the adaptation, streaming on Prime Video globally from September 23.

What is ‘The Love Hypothesis’ about?

The Love Hypothesis follows Olive, a brilliant Ph.D. candidate focused on her future in academia. But when she realizes her best friend Ahn has fallen for her crush, Jeremy, Olive impulsively kisses intimidating professor Adam Carlsen to prove she’s moved on.

What begins as a desperate act of friendship spirals into a fake relationship with rules, boundaries, and a mutually beneficial agreement. When their arrangement begins to blur the lines between performance and reality, Olive is forced to test her most daunting hypothesis yet: that love might actually be worth the risk.

Who is in ‘The Love Hypothesis’ cast?

Rachel Marsh, Nicholas Duvernay, and Jaboukie Young-White smiling together as they stare out off of a balcony

The Love Hypothesis stars:

Lili Reinhart (Chemical Hearts) as Ph.D. candidate Olive
Tom Bateman (Hedda) as intimidating professor Adam
Rachel Marsh (Fallout) as Olive’s best friend Ahn
Nicholas Duvernay (Reminders of Him) as Olive’s crush Jeremy

The movie is directed by Claire Scanlon (The People We Hate at the Wedding) and written by Sarah Rothschild, based on Hazelwood’s novel.

How to watch 'The Love Hypothesis' on Prime Video

Lili Reinhart and Tom Bateman in Prime Video's Love Hypothesis

The Love Hypothesis will release exclusively on Prime Video globally on September 23.

Prime Video is included with an Amazon Prime membership, which costs $14.99 a month or $139 a year in the U.S. Discounted memberships are also available for young adults and qualifying government assistance recipients at 50% off.

Check your local Amazon website for information on Prime membership pricing in your region.

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What else is on Prime Video?

Tom Bateman carrying Lili Reinhart in his arms through the park at night lovingly.

There are plenty of other romantic movies available to watch on Prime Video including The Map That Leads to You, The Idea of You, and Red, White & Royal Blue.

Prime Video is a first-stop entertainment destination offering customers a vast collection of premium programming in one app available across thousands of devices. Prime members can customize their viewing experience and find their favorite movies, series, documentaries, and live sports.

These include Amazon MGM Studios–produced series and movies, licensed fan favorites, and programming via subscriptions on Prime Video such as MGM+, Apple TV, HBO Max, Peacock Premium Plus, FOX One, DAZN, and Crunchyroll, as well as more than 900 free ad-supported streaming television (FAST) channels.

All customers, regardless of whether they have a Prime membership or not, can rent or buy titles via the Prime Video Store, and can enjoy even more content for free with ads.

Next, find out more about Love Me Love Me 2, the upcoming second installment of the saga based on Stefania S.’s international bestselling novels.