‘The Love Hypothesis’ Movie Secretly Started as ‘Star Wars’ Fan Fiction and Here Are All the Details You Need to Know About the ReyLo Story

‘The Love Hypothesis‘ has finally landed on Prime Video, and longtime fans are once again buzzing about the wild origin story behind Olive Smith and Adam Carlsen. Before it was a runaway BookTok sensation, this fake dating rom-com began its life as something far nerdier and far more niche.

Author Ali Hazelwood built the entire foundation of the story around two very different characters from a galaxy far, far away, and the connection is impossible to unsee once you know it.

The ReyLo Fanfic Origins Behind Olive and Adam

Before Olive Smith and Adam Carlsen ever set foot in a Stanford lab, they existed as Rey and Kylo Ren. Ali Hazelwood’s story was originally born from a fanfiction inspired by Star Wars, drawing directly on the characters played by Daisy Ridley and Adam Driver in the sequel trilogy.

The transformation from galactic force users to feuding academics did not happen overnight. Hazelwood eventually reworked the fanfiction into a wholly original story, swapping lightsabers for lab coats and turning her Reylo AU into Olive and Adam’s fake dating saga.

Longtime readers have long suspected the connection based purely on vibes, and plenty of reviewers say the Star Wars DNA is baked right into the book’s tone. One reader admitted she pieced it together simply by looking at the cover art once she learned the novel had started as Reylo fan fiction. Others have pointed to the slow burn tension and the “forbidden pairing” energy as a dead giveaway even before the origin story went mainstream.

The academic AU angle also explains why so many fans of the original trilogy found themselves unexpectedly hooked. One reviewer called it repurposed Reylo fan fiction outright, noting that the Star Wars inspirations remain noticeable in Olive and Adam’s dynamic without ever feeling like a constraint on the story itself.

From BookTok Sensation to Prime Video Adaptation

‘The Love Hypothesis’ did not stay a niche fandom curiosity for long. The novel follows Olive, a PhD student navigating the complexities of love and academia at Stanford University, and it took the literary world by storm after its 2021 release.

The premise itself is pure rom-com gold, even stripped of its fandom backstory. To convince her best friend that she is genuinely over a past relationship, Olive impulsively kisses a stranger who turns out to be Adam Carlsen, a notoriously stern professor, and what starts as a ruse to appease her friend evolves into a full fake dating agreement.

BookTok latched onto the story almost immediately, and it has not let go since. The film adaptation is considered one of the most anticipated releases of the year among BookTok readers, arriving four years after the movie rights were first purchased and five years after the novel’s original release.

That kind of sustained demand does not happen by accident. Between the fake dating trope, the forced proximity setup, and the STEM romance genre Hazelwood practically pioneered, ‘The Love Hypothesis’ built a devoted readership long before Hollywood came calling.

Lili Reinhart and Tom Bateman Bring Olive and Adam to Life

Casting news for the adaptation sent fans into a frenzy the moment it dropped. The film stars Lili Reinhart as Olive Smith and Tom Bateman as Dr. Adam Carlsen, with Claire Scanlon directing from a screenplay written by Sarah Rothschild.

The supporting cast rounds out the fake dating chaos nicely. Rachel Marsh plays Ahn, Nicholas Duvernay plays Jeremy, Jaboukie Young-White plays Malcolm, and Arty Froushan plays Tom.

The teaser trailer that debuted at Obsessed Fest gave fans their first real taste of the central will they or won’t they dynamic. The footage opens with documentary style narration comparing human relationships to molecules that vibrate and collide until they find their match, before shifting into Olive’s desperate attempt to convince her best friend she has moved on from her ex.

That kiss scene, the one that kicks off the entire fake relationship, has become the moment fans are replaying most. Realizing what she has done, Olive immediately apologizes, and the two ultimately agree to a strategic fake dating arrangement complete with rules and boundaries designed to benefit them both.

What to Know About ‘The Love Hypothesis’ Release Date

Mark your calendars, because the wait is officially over. Prime Video revealed on June 11 that ‘The Love Hypothesis’ would premiere on September 23, 2026, with the streamer announcing the news through a playful social clip starring Reinhart herself.

The rollout leaned heavily into fan excitement long before the premiere date arrived. Stars Reinhart and Bateman unveiled the first teaser trailer at the Obsessed Fest fan event on June 27, with the full official trailer following on August 26 and teasing beloved book moments including the first kiss, the sunscreen scene, and the hotel room sleepover.

For anyone who somehow missed the hype train, this adaptation arrives with serious pedigree behind it already. Cosmopolitan scored an exclusive first look at the film, including a photo of Olive and Adam’s memorable first kiss.

Whether you came for the STEM romance, the fake dating trope, or the buried Star Wars easter eggs, ‘The Love Hypothesis’ is finally streaming in full. Now that Olive and Adam’s fake relationship has officially hit the screen, are you Team Reylo enough to spot every trace of Rey and Kylo Ren hiding inside this lab coat love story?