‘The Love Hypothesis’ Release Date, Time, Cast, Trailer, and Plot Details for Prime Video

Ali Hazelwood’s cherished STEM rom-com is making its way from the page to the screen, and fans have been eagerly anticipating this moment. The romance community took notice in 2021 when Hazelwood’s debut novel gained immense popularity, leading to a dedicated fanbase captivated by tales of women in science falling for tall, brooding men who can’t help but think about them.

Now, ‘The Love Hypothesis’ is finally being adapted, fulfilling the wishes of fans since its announcement. The streaming date, full cast, and trailer have all been revealed. Here’s a comprehensive overview of what we know so far.

‘The Love Hypothesis’ is set to premiere on September 23, 2026. Instead of hitting theaters, the film will be available for streaming on Prime Video, allowing fans to enjoy it from the comfort of their homes.

The film will be available globally on Prime Video, featuring Lili Reinhart and Tom Bateman as the two scientists who find themselves in a fake relationship. Prime Video made the announcement official on June 11, teasing something special was coming before confirming the September release, coinciding perfectly with the start of pumpkin spice latte season.

Reinhart later shared a TikTok video confirming that filming had wrapped, where she and Bateman humorously reenacted a farewell scene from ‘The Office.’ This playful behind-the-scenes chemistry has only heightened excitement as the premiere approaches.

Lili Reinhart stars as Olive, a brilliant PhD candidate focused on her academic future, while Tom Bateman portrays Adam, the intimidating professor she becomes involved with. Reinhart is widely recognized for her role in ‘Riverdale,’ and fans have praised her casting as a perfect fit for Olive’s character.

Once the lead actors were announced, fans expressed their eagerness to see this pairing come to life on screen, especially given the beloved dynamic between Olive and Adam among readers. The chemistry hinted at in early footage has only fueled the anticipation.

The cast also includes Rachel Marsh as Olive’s best friend Ahn and Nicholas Duvernay as Olive’s crush Jeremy. Jaboukie Young-White and Arty Froushan join the ensemble as Malcolm and Tom, respectively.

Directed by Claire Scanlon and written by Sarah Rothschild, the film is based on Hazelwood’s novel. Hazelwood herself serves as an executive producer alongside Elizabeth Cantillon, who also produces.

The plot begins when Olive, in a bid to convince one of her best friends that she has moved on, impulsively kisses Dr. Adam Carlsen, a professor notorious for being difficult. After realizing her best friend Ahn has developed feelings for her own crush Jeremy, Olive uses the kiss with Adam to demonstrate her unavailability.

What starts as a spontaneous moment evolves into a mutually beneficial arrangement where Olive and Adam agree to fake date, each with their own reasons for doing so. This setup comes with its own rules and boundaries, as both insist they have no intention of actually falling for each other.

As expected, the lines between performance and reality begin to blur, prompting Olive to consider whether love might be worth the risk. This classic grumpy meets sunshine dynamic is what made the novel a hit among romance readers.

Interestingly, the source material has its origins in fan fiction, initially starting as a 2018 Reylo fanfic before Hazelwood transformed it into the contemporary romance we know today. Even Adam’s name is a nod to this origin, referencing Adam Driver, who portrayed Ben Solo in the ‘Star Wars’ sequel trilogy.

Prime Video first unveiled a teaser for the movie at its Obsessed Fest event, giving fans an early look before the full trailer was released weeks later. The complete trailer debuted on August 26, showcasing several beloved moments from the book.

Among the scenes highlighted are Olive and Adam’s first kiss, the much-discussed sunscreen moment that book readers will instantly recognize, and their hotel room sleepover. The trailer illustrates Olive’s plan unfolding, beginning with the impulsive kiss with the professor, humorously referred to by some fans as Dr. Evil, and leading into the chaotic fake dating arrangement that ensues.

In one memorable moment from the trailer, Olive can be heard telling Adam in his office, while laughing, that they are officially fake dating. The trailer notably concludes just before one of the most iconic sections of the book, the science conference chapters, seemingly a deliberate choice to leave fans eager for more.

Overall, the footage closely follows the central fake dating premise and the dynamic tension between Olive and Adam that defines the novel. While some changes are expected in any adaptation, Hazelwood’s involvement as an executive producer gives longtime readers cautious optimism that the essence of the story will remain intact.

With the release date confirmed and the full trailer finally available, all that remains is the wait. As Olive and Adam’s fake dating saga prepares to unfold on screen, which book moment are you most eager or anxious to see brought to life by Reinhart and Bateman?