The Love Hypothesis (2026)

Sometimes the most convincing experiment is the one you never meant to run. The Love Hypothesis, arriving in 2026, brings Ali Hazelwood's runaway bestselling novel to the screen with Lili Reinhart and Tom Bateman leading a cast of academics who are far better at research than at feelings. Directed by Claire Scanlon, this romantic comedy takes the beloved fake-dating formula, hands it a lab coat, and lets the chemistry do the rest.

What The Love Hypothesis Is About

Olive Smith is a biology PhD candidate with a plan for everything, including her love life, which she has mostly decided to observe from a safe distance. When a situation with her best friend leaves Olive needing to look convincingly over an old crush, she does something wildly out of character: she kisses the first plausible stranger available. Unfortunately, the nearest candidate is Dr. Adam Carlsen, a professor known across the department for being brilliant, exacting, and frankly terrifying.

Rather than let the moment die an awkward death, the two strike a bargain: a staged relationship, complete with rules, boundaries, and mutual benefit. It should be simple. It is not. As the arrangement stretches on, the line between performance and genuine feeling starts to blur, and both Olive and Adam are forced to confront whether their tidy hypotheses about romance can survive actual contact with it.

The film keeps its premise spoiler-free and its stakes personal: no villains, no grand conspiracies, just two people testing whether love is worth the risk.

The Cast: Reinhart, Bateman, and a Strong Supporting Bench

Lili Reinhart plays Olive, and the role fits her knack for grounded, self-aware heroines. Olive is a scientist who treats her own heart like an outlier in the data, and Reinhart's job is to make that denial both funny and quietly moving. Tom Bateman takes on Adam Carlsen, a part that lives or dies on the balance between gruff and genuinely warm, and the pairing's screen chemistry is what the whole film is betting on.

The supporting cast fills out the lab with real personality. Rachel Marsh plays Olive's best friend Anh Pham, the kind of friend who pushes you toward happiness whether you asked for it or not, while Jaboukie Young-White brings comic energy as Malcolm Browne. Nicholas Duvernay appears as Jeremy Langley, the object of Olive's former affections, and the faculty ranks include Arty Froushan as Dr. Thomas Benton, Jeananne Goossen as Dr. Juliet Aslan, Aladeen Tawfeek as Dr. Eugene Fastuca, Daniel Brochu as Dr. Hargrave, and Kenny Wong as McConnell. It's an ensemble that treats academia like a real workplace, which is half the joke and half the charm.

From Bestselling Novel to the Screen

The source material is Ali Hazelwood's novel, a book that became a phenomenon largely through word of mouth among romance readers and STEM-adjacent romantics who finally saw themselves on the page. Hazelwood is on board as an executive producer alongside star Lili Reinhart and Catherine Hagedorn, a sign the production wanted the author's voice intact rather than diluted.

Directing duties go to Claire Scanlon, whose background in comedy gives the film a light, confident hand, with a screenplay by Sarah Rothschild. Elizabeth Cantillon produces through The Cantillon Company, with MRC and Amazon MGM Studios backing the project. Behind the camera, Laura Karpman composes the score, Matthew Clark handles cinematography, and the edit comes from Tia Nolan and Kim Boritz-Brehm, a crew with the chops to keep a two-hander romance moving at a brisk 112 minutes.

Themes, Tone, and Style

At its core, this is a story about the gap between what we claim to want and what actually makes us happy. Olive's arc touches on identity and intimacy in ways the genre rarely bothers with; the film's keywords include asexuality and demisexuality, and the story treats how Olive experiences attraction as a legitimate subject rather than a punchline. The fake-dating trope is the delivery system, but the payload is something more thoughtful about consent, communication, and letting go of control.

Tone-wise, expect a classic romcom rhythm: banter-forward, warm, and gently self-aware, with lab settings doubling as a running metaphor for experiments that refuse to go according to plan. The humor comes from characters, not cringe, and the emotional beats are earned rather than engineered.

Who Will Enjoy It

Anyone who devoured the book already knows the answer, and the film is clearly built to reward that audience. Beyond the fanbase, it's a strong pick for readers who like their romance smart, their heroines in STEM, and their love interests prickly-but-redeemable. Fans of contemporary romcoms that take emotional nuance seriously, and viewers curious about stories that explore attraction on the asexual and demisexual spectrums with warmth, will find plenty to like here.

Where to Watch

For viewers in the US, The Love Hypothesis is available to stream on Amazon Prime Video, including the ad-supported tier of the service. A subscription to Prime Video covers both options, so no additional rentals are needed.

Similar Titles Worth Exploring

If the premise works for you, seek out other fake-dating romcoms where the arrangement stops being fake, a well-worn trope that this film both embraces and refreshes. The book's success sits squarely in the contemporary romance space, so readers might explore Ali Hazelwood's other novels, which share the same voice: women in science, reluctant attraction, and banter with actual stakes.

On screen, look for romantic comedies centered on driven professionals whose careers leave no room for feelings until the plot insists otherwise. The film's blend of workplace comedy and slow-burn romance puts it in company with the recent wave of book-to-screen romcoms that treat genre conventions with affection instead of irony.