Hollywood Serendipity: Lili Reinhart and Tom Bateman Unpack the Wild Fanfic Lore Behind ‘The Love Hypothesis’
September 4, 2026
If you tried pitching the behind-the-scenes origin story of Prime Video’s The Love Hypothesis to a Hollywood executive, they’d probably tell you it sounds too absurd to be true. Starring Lili Reinhart and Tom Bateman, the highly anticipated film adaptation of Ali Hazelwood’s bestselling romance novel arrives this September 2026, backed by a real-life casting twist that feels like pure cosmic alignment.
1. The ‘Reylo’ Fanfiction Lore Meets Real-Life Magic
Back in 2018, an Italian neuroscience professor publishing under the handle “Head Over Feet” uploaded a wildly popular Star Wars fanfiction to Archive of Our Own. Inspired by the electric on-screen chemistry between Rey (played by Daisy Ridley) and Kylo Ren/Adam Driver (dubbed “Reylo”), that digital story was eventually expanded into the 2021 publishing juggernaut The Love Hypothesis.
When Lili Reinhart signed on in 2024 to star as Stanford PhD candidate Olive Smith and serve as an executive producer, she actually had zero knowledge of the book’s fanfiction roots. It wasn’t until she was deep into pre-production that someone casually filled her in on the Star Wars connection.
Then came the ultimate stroke of casting luck. During chemistry reads in 2025, Lili Reinhart tested with British actor Tom Bateman, whose magnetic audition immediately secured him the role of brooding professor Dr. Adam Carlsen. The wild catch? Tom Bateman is married to Daisy Ridley in real life!
Internet sleuths quickly assumed the casting was a calculated marketing stunt. However, Lili Reinhart confirmed with 100-percent certainty that neither Tom nor Daisy had any clue about the Reylo lore before he was offered the part—proving that true “Hollywood serendipity” actually exists.
2. Inside the Casting & Character Breakdown
As an executive producer, Lili Reinhart admitted that finding her male lead was a daunting task. She wanted a scene partner who was completely comfortable co-starring alongside a female lead while bringing top-tier talent to elevate every single frame.
| Character / Aspect | Book Lore & Inspiration | Movie Adaptation & Casting |
| Olive Smith | Inspired by Daisy Ridley’s ‘Rey’ | Played by Lili Reinhart (Star & Executive Producer) |
| Dr. Adam Carlsen | Inspired by Adam Driver’s ‘Kylo Ren’ | Played by Tom Bateman (Who is married to Daisy Ridley!) |
| Core Dynamic | Fake-dating academic romance | Darcy/Elizabeth Bennet vibes between misunderstood outsiders |
| Behind the Lens | Written by Ali Hazelwood | Directed by Claire Scanlon (Set It Up) |
“It’s always so nerve-wracking to think, ‘Okay, I’m attached. Who wants to play second to me?’… Trying to find a guy who wants to play second to a woman lead who’s me is a little daunting… I knew Tom was an amazing actor, and then he just so happened to have this incredibly strange connection to Daisy.”
3. Going Rogue with Viral On-Set TikToks
Beyond acting and producing, Lili Reinhart took complete charge of the film’s digital marketing strategy. Drawing from her years navigating fandom culture on Riverdale, she rejected generic corporate promos and went “rogue” on set in Montreal, directing her own candid social media content with Bateman.
Despite initial hesitation from executives, Lili Reinhart‘s vision paid off massively. Her viral casting reveal video—featuring the famous “scooping up” moment—accumulated over 80 million views globally. Bateman, who lightheartedly admitted he doesn’t even know how to spell “TikTok” in text messages, happily submitted to dozens of takes under Reinhart’s direction.
4. Navigating the Steamy Hotel Room Scene with Total Trust
One of the biggest talking points for readers is the novel’s iconic, two-chapter-long hotel room intimate scene. Lili Reinhart openly acknowledged that filming the sequence brought the highest level of pressure on set, given how fiercely fans adore that specific turning point in Olive and Adam’s romance.
Describing it as arguably the heftiest intimacy sequence of her career, Lili Reinhart stressed that building absolute trust with Bateman and working alongside intimacy coordinator Jen Viens made the entire experience comfortable and secure. Spending six hours filming in a crowded room required emotional maturity, but their mutual respect on and off camera ensured complete ease.
“It’s so paramount to do something like this with someone you trust, and that’s why I love Tom… There was not an ounce of discomfort and there was complete trust.”
5. Capturing the Heart of the Adaptation
Rather than delivering a rigid, page-by-page translation, Lili Reinhart and director Claire Scanlon focused on capturing the exact feeling the book gives its readers—that giggling, foot-kicking, blushing excitement of watching two guarded people fall hopelessly in love.
Celebrating her 30th birthday throughout September 2026 alongside the film’s press tour, Lili Reinhart feels this project represents her most highly anticipated release since Riverdale. With undeniable on-screen chemistry, viral marketing, and an unbelievable origin story, The Love Hypothesis is officially set to conquer romantic comedy fans when it drops on September 23.
Follow D-Muse to stay current with fashion trends, lifestyle tips, and exciting events. DM us @dmusemagz now to get all the information you need!