The Love Hypothesis: Lili Reinhart’s Romantic Comedy

Here's a fun fact that sounds too strange to be true: the fake-dating professor romance you're about to fall in love with actually started life as Star Wars fan fiction.

The Love Hypothesis has finally made the jump from BookTok obsession to full-blown romantic comedy on screen, and the story behind it is almost as entertaining as the film itself.

Movie Details
Movie Name	The Love Hypothesis
Release Date	23 September 2026
OTT Platform	Prime Video
Lead cast	Lili Reinhart and Tom Bateman
Language	English
Genre	Romantic Comedy
Director	Claire Scanlon
Rating	7/10

From Reylo Fanfic to Bestselling Romantic Comedy

Ali Hazelwood's The Love Hypothesis released back in 2021 and quickly became one of those books impossible to avoid if you spent any time in the romance corner of the internet. What makes its journey genuinely fascinating, though, is where it started. Hazelwood originally wrote the story as fan fiction imagining a relationship between Rey and Kylo Ren from Star Wars, commonly known online as "Reylo."

Now, in a twist that feels almost too perfect, the film adaptation stars Tom Bateman, who happens to be married to Daisy Ridley, the actress who played Rey. It's the kind of full-circle internet moment that fans of the book have been buzzing about ever since casting was announced, and it adds a strange, delightful layer of meta-context to this already beloved romantic comedy.

What Is The Love Hypothesis About?

Lili Reinhart plays Olive Smith, a Stanford PhD candidate in biology who's brilliant, a little neurotic, and completely devoted to her research. Her closest friend is the extroverted Anh, played by Rachel Marsh, and the two are close enough that Olive spends holidays with Anh's family.

The plot kicks into gear when Olive notices Anh developing feelings for Jeremy, a guy Olive also happens to have a crush on. Being the loyal best friend she is, Anh refuses to pursue Jeremy because she doesn't want to hurt Olive. To get her friend out of the way, Olive lies and claims she already has a date lined up. When Anh gets suspicious and starts spying on her, Olive panics and impulsively kisses a random stranger to sell the lie. That stranger turns out to be Dr. Adam Carlsen, the most feared professor in the biology department, nicknamed "Dr. Evil" by students.

From there, this romantic comedy leans fully into its central hook: Carlsen proposes they fake-date. Olive gets a boyfriend to convince Anh it's fine to pursue Jeremy, while Carlsen gets a girlfriend to prove to Stanford's administration that he has a personal reason to stay, which conveniently helps secure continued funding for his research grant. It's a classic fake-dating setup, but one dressed up in lab coats and academic politics instead of the usual rom-com trappings.

The Cast Bringing Olive and Adam to Life

Lili Reinhart leads the film as Olive, and critics widely agree she's the film's biggest strength. She plays Olive with a charming, sweaty-palmed neurosis, the kind of character who gives tiny high-fives to lab mice and visibly panics when asked to explain her research out loud. Her portrayal leans into Olive's dedication to science in a way that feels refreshing for the genre, prioritising a heroine focused on curing cancer rather than chasing a scoop or planning a wedding.

Tom Bateman plays Dr. Adam Carlsen opposite her, bringing genuine chemistry to their scenes together.
Rachel Marsh plays Anh, whose friendship with Olive is frequently singled out as one of the most compelling relationships in the entire film.
Nicholas Duvernay plays Jeremy, and Jaboukie Young-White rounds out the cast as Malcolm, Olive's gay best friend and roommate.

Also Read: Avengers Endgame Encore Advance Booking Sets Box Office Buzz

What Reviewers Are Saying: A Genuinely Mixed Bag

Reactions to this romantic comedy have been interesting, landing somewhere between genuine adoration and thoughtful critique, depending on who's watching.

Some review leaned heavily positive, awarding the film four out of five stars and praising the chemistry between Reinhart and Bateman as doing much of the heavy lifting. The review highlighted how the film manages to tell two love stories at once, the central romance and Olive's deep, meaningful friendship with Anh, without treating the friendship as filler. It also praised the film's thoughtful handling of women in STEM, noting that Olive's ambition and scientific passion are never treated as something she needs to sacrifice for romance.

On the other hand, The Arts Fuse offered a more mixed take, arguing that the real love story in the film isn't the central romance at all, but rather Olive and Anh's steady, unwavering friendship. That review was more critical of Carlsen's characterisation, noting the character leans into an "autistic-coded" trope common in romantic comedies, where the male lead is emotionally closed off and gradually "humanised" by the heroine. The review found this handling somewhat tired and felt the film front-loads too much of Carlsen's backstory near the end, making it harder to understand Olive's attraction to him earlier in the story.

Also Read: Resident Evil Movie Trailer, Story, Cast, Release Date & More

Why This Romantic Comedy Stands Out

What both reviews seem to agree on, despite their differing overall verdicts, is that this romantic comedy does something genuinely interesting with its supporting relationships. Olive and Anh's friendship remains steady throughout, without the usual rom-com trope of a falling-out and dramatic reconciliation. That consistency gives the film an emotional anchor beyond just its central couple.

The film also leans into its academic setting in a way that feels authentic rather than decorative. Scenes involving quirky science-themed parties, like a group of researchers building Rube Goldberg machines for fun, add a distinct personality to the film's world that separates it from more generic entries in the romantic comedy genre.

Should You Watch It?

If you're a fan of the fake-dating trope, enjoy character-driven romantic comedy storytelling, and want to see a heroine whose career ambitions stay front and centre throughout her love story, The Love Hypothesis is very much worth watching. Reinhart's performance alone makes a strong case for it, and the film's handling of female friendship offers something a little different from the genre's usual formula.

If you're looking for a flawless, tightly written script with no predictable beats, you might find a few familiar rom-com patterns creeping in, along with some legitimate criticism around how Carlsen's character is written. Still, even its more critical reviewer found more to appreciate than to dismiss, particularly in the film's treatment of friendship and ambition.

Whether you fall for the central romance or end up more invested in Olive's friendship with Anh, The Love Hypothesis proves there's real appetite for a romantic comedy that takes women in science seriously, and its unlikely journey from Star Wars fan fiction to full-circle casting only makes the story behind the story just as fun as the film itself.

You May Also Like
Best Sea Adventure Movies	Dark Romance Movies	Slapstick Comedy Movies