Lili Reinhart is the kind of performer who can make bad lines land through sheer force of expressiveness — she did it for years on Riverdale, she did it memorably in Hustlers, and she does it here, repeatedly, for a film that doesn't deserve the effort. Her Olive Smith, a Stanford biology PhD student fake-dating a cold, handsome professor to protect her friend's love life, is exactly the role Reinhart was built for: earnest, slightly awkward, capable of sudden sharpness, with the comedic timing of someone who's studied Amanda Bynes frame-by-frame. The character is there. The movie isn't. The setup is this: Olive's friend Anh turns down a date with Jeremy because she suspects Olive has feelings for him. Olive, panicking, kisses the first available man — Dr. Adam Carlsen, universally known as Dr. Evil — to manufacture a reason for Anh to reconsider. Carlsen, played by Tom Bateman with the affect of a malfunctioning appliance, needs a girlfriend to convince grant administrators he's staying at Stanford. So: fake relationship, shared research interests, emotional walls, controlled variables. You know the rest. The fake-dating premise is a structural backbone, not a plot — the best films in this tradition know that, and spend their real energy on texture, chemistry, and specificity. The Love Hypothesis doesn't. Director Claire Scanlon, whose Set It Up (2018) remains one of Netflix's sharper romcoms, seems to have been handed a script by Sarah Rothschild that trusts the book's fanbase more than it trusts the craft. Scenes are choppy. The voiceover appears and disappears without logic. The tonal register can't decide if it wants to be grounded character comedy or something closer to the quasi-villain third act the source novel — originally Star Wars fan fiction — apparently delivered. Tom Bateman is the film's central problem. The robot-to-romantic-hero arc is a staple of the genre, but it requires an actor who can let the warmth leak through before the script permits it — think Colin Firth as Darcy, or even Henry Cavill in The Man from U.N.C.L.E. Bateman plays the automaton with conviction, which means there's very little to anchor the attraction until the film needs him to be swoonworthy, at which point he shifts registers visibly and abruptly. One intimate scene does real work — a line reading that may or may not have been "you're edible" does more for the film's heat than anything in the preceding ninety minutes — but it's a single scene in a film that needed warmth distributed throughout. Reinhart carries the film across an impressive range of obstacles: period-incorrect costuming, science-speak that lands like stage directions ("Your work on circulating tumor cells is groundbreaking!"), a backstory involving her late mother and pancreatic cancer research that the film treats as character motivation without earning it emotionally. The scene where she and Bateman must convince his Harvard colleague — played with smooth competence by Arty Froushan — that their relationship is real showcases exactly what she can do with underwritten material. It's the film's best sequence. It's surrounded by lesser ones. The BookTok adaptation wave it arrives in — CoHo films, The Summer I Turned Pretty, the recent Off Campus — has produced work ranging from messy-but-alive to genuinely good. The Love Hypothesis sits closer to the bottom of that range, not because it gets the formula wrong but because it executes the formula without conviction. The ingredients are correct. The chemistry, in both senses, is absent.
