The Love Hypothesis movie is bringing Ali Hazelwood’s bestselling romance novel to the screen, with Lili Reinhart and Tom Bateman leading the adaptation. The romantic comedy follows a Ph.D. candidate and an intimidating professor whose fake relationship starts becoming much more complicated than either of them expected.
The movie is heading exclusively to Prime Video on September 23, 2026, giving fans of the original novel a new reason to revisit Olive and Adam’s story.
Here’s everything we know about The Love Hypothesis movie, including its release date, trailer, cast, story, and connection to Ali Hazelwood’s book.
The Love Hypothesis Movie Release Date
The Love Hypothesis will premiere globally on Prime Video on September 23, 2026.
The movie will be available exclusively on Prime Video, meaning viewers will be able to watch it from home when it arrives on the streaming service.
For anyone searching when is The Love Hypothesis movie coming out, the answer is September 23, 2026.
The Love Hypothesis Trailer
The official The Love Hypothesis trailer gives fans their first major look at Lili Reinhart and Tom Bateman as Olive and Adam.
Prime Video has released official trailer material for the movie, giving viewers a closer look at the fake relationship at the center of the story.
🎬 Watch the Official The Love Hypothesis Trailer
The trailer introduces Olive as a young scientist trying to navigate her academic life, while Adam is presented as the intimidating professor who unexpectedly becomes part of her personal life.
Their relationship begins as an arrangement, but keeping things strictly fake may be much harder than expected.
What Is The Love Hypothesis Movie About?
The Love Hypothesis follows Olive, a Ph.D. candidate who is focused on building her future in academia.
Her situation changes when she realizes that her best friend Ahn has fallen for Olive’s crush, Jeremy. Olive wants to convince Ahn that she has moved on, so she impulsively kisses Adam Carlsen, an intimidating professor.
Instead of simply being an awkward moment, the kiss eventually leads Olive and Adam into a fake relationship.
The arrangement is supposed to benefit both of them, with rules and boundaries designed to keep their relationship under control.
But as Olive and Adam spend more time together, those boundaries begin to disappear.
The story then becomes a question of whether their fake relationship can remain fake—or whether genuine feelings are developing between them.
The Love Hypothesis Cast
The main cast includes several recognizable actors, with Lili Reinhart and Tom Bateman leading the movie.
Lili Reinhart as Olive
Lili Reinhart plays Olive, the Ph.D. candidate at the center of the story.
Olive is ambitious and focused on her academic career, but her decision to pretend to date Adam puts her in a situation she never expected.
Tom Bateman as Adam Carlsen
Tom Bateman plays Adam, the intimidating professor who becomes Olive’s fake boyfriend.
His reputation makes the relationship particularly unexpected, especially considering how differently Olive initially sees him.
Rachel Marsh as Ahn
Rachel Marsh plays Ahn, Olive’s best friend.
Ahn’s romantic situation helps set the main story in motion.
Nicholas Duvernay as Jeremy
Nicholas Duvernay plays Jeremy, Olive’s crush.
His connection to Olive and Ahn becomes one of the reasons Olive creates the fake relationship with Adam.
Who Directed The Love Hypothesis?
The movie is directed by Claire Scanlon, with a screenplay by Sarah Rothschild.
The film is based on Ali Hazelwood’s bestselling romance novel of the same name.
The Love Hypothesis Is Based on Ali Hazelwood’s Book
Yes. The Love Hypothesis movie is based on Ali Hazelwood’s bestselling romance novel.
The original book became especially popular among romance readers because of its combination of academia, fake dating, comedy, and romance.
The movie keeps the central concept of the novel: Olive and Adam enter a fake relationship, only for their arrangement to become increasingly difficult to control.
What Does The Love Hypothesis Trailer Reveal?
The trailer gives viewers a look at the relationship between Olive and Adam and establishes the movie’s romantic-comedy tone.
The main elements include:
- Fake dating
- Academic life
- Romance
- Friendship
- Comedy
- Romantic tension
The biggest focus is the changing relationship between Olive and Adam.
What starts as a practical arrangement gradually becomes something much more personal.
Where to Watch The Love Hypothesis
The Love Hypothesis will be available to watch exclusively on Prime Video starting September 23, 2026.
You can check the official movie page on Prime Video for the latest availability information.
So if you’re searching where to watch The Love Hypothesis movie, Prime Video is the official streaming destination.
Will The Love Hypothesis Be Released in Theaters?
At this time, The Love Hypothesis is being presented as a Prime Video exclusive, with its global release scheduled for September 23, 2026.
That means viewers won’t need to wait for a traditional theatrical release to see the movie.
What to Expect From The Love Hypothesis
The movie should appeal especially to fans of romantic comedies and book-to-film adaptations.
The combination of Ali Hazelwood’s popular source material, a fake-dating storyline, and the pairing of Lili Reinhart and Tom Bateman gives the movie a strong setup for its Prime Video debut.
With the release date approaching, searches around the trailer, cast, story, and streaming availability are likely to remain important for fans discovering the adaptation.
The Love Hypothesis Movie: Everything We Know
DetailInformation
Title The Love Hypothesis
Release Date September 23, 2026
Platform Prime Video
Genre Romantic Comedy
Director Claire Scanlon
Writer Sarah Rothschild
Based On Ali Hazelwood’s novel
Lead Cast Lili Reinhart, Tom Bateman
Olive Lili Reinhart
Adam Tom Bateman
Frequently Asked Questions
When is The Love Hypothesis movie coming out?
The Love Hypothesis will be released on September 23, 2026, exclusively on Prime Video.
Who stars in The Love Hypothesis movie?
The movie stars Lili Reinhart as Olive and Tom Bateman as Adam. Rachel Marsh and Nicholas Duvernay are also part of the main cast.
Is The Love Hypothesis based on a book?
Yes. The movie is based on Ali Hazelwood’s bestselling romance novel The Love Hypothesis.
Where can I watch The Love Hypothesis?
The movie will stream exclusively on Prime Video beginning September 23, 2026.
Has The Love Hypothesis trailer been released?
Yes. Prime Video has released official trailer material for the movie, giving fans a first look at Olive and Adam’s relationship.
Final Thoughts
The Love Hypothesis is shaping up to be an important romance release for Prime Video in September 2026.
With Lili Reinhart and Tom Bateman leading the cast, a popular Ali Hazelwood novel behind the story, and official trailer material already available, interest in the adaptation should continue building as September approaches.
The key date for fans is September 23, 2026, when The Love Hypothesis arrives globally on Prime Video.