Whalefall (2026) Review: Grisly, Until It Flashes Back — Austin Abrams Gets Swallowed by a Sperm Whale, and the Movie Is at Its Best When It Stays Inside It

Director Brian Duffield commits fully to the body-horror premise of a diver trapped in a sperm whale's stomach, but keeps cutting away to the father-son backstory that's supposed to give it weight.

Whalefall opens with a premise that sounds like a dare: a young diver named Jay Gardiner, played by Austin Abrams, is searching off the central California coast for the remains of his father, a veteran diver who drowned a year earlier, when he's swallowed whole by an 80-foot, 60-ton sperm whale. He has roughly an hour of oxygen left to find his way out before he either suffocates or drowns inside it, whichever comes first.

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The film is strongest exactly where you'd expect it to struggle

Director Brian Duffield, adapting Daniel Kraus's 2023 novel, commits completely to the physical reality of being trapped inside a whale, and that commitment pays off. The practical effects work inside the creature's stomach is genuinely spectacular and grisly in the way good body horror should be — slick, organic, claustrophobic, and shot in a way that makes the geography of "escaping from inside an animal" feel disturbingly plausible rather than cartoonish. The moment Jay is first pulled into the whale's mouth is one of the most effective single sequences of the film, and the practical, tactile grossness of the whale's interior carries most of the movie's back half.

The flashback structure is where critics are split

Where the film loses some momentum is in its flashback structure: Duffield repeatedly cuts away from the stomach to Jay's relationship with his father, played by Josh Brolin, including the fishing-boat scene where Brolin's character goes overboard a year earlier. The intent is clear — give the survival sequence emotional stakes beyond "will he escape" — but critics have been genuinely split on whether it works. Rotten Tomatoes' critics consensus describes the film as "unforgettably visceral whenever it isn't getting mired in flashbacks," which is a fair summary of the throughline running through most reviews: the whale material is the reason to watch it, the backstory material is what keeps it from being great.

Where the cast lands

Abrams carries nearly the entire back half alone, in a wetsuit, in a confined practical set, which is a harder acting assignment than it sounds — most of his performance has to land through breathing, body language and muffled dialogue through a dive mask, and it mostly does. Brolin, Elisabeth Shue and Jane Levy round out the family in the flashback timeline and do what the script asks of them, though the flashback scenes understandably can't generate the same tension as a man running out of air inside an animal.

The scores, and what they suggest

Whalefall currently sits at 73% on Rotten Tomatoes from 177 critic reviews, with a notably higher 81% audience score from more than 1,000 verified ratings — a real but not unusual gap, suggesting general audiences are responding to the premise and the visceral set pieces more readily than critics are forgiving the flashback pacing. On Metacritic, the film sits at a 59 ("mixed or average") from critic reviews, and it holds a 6.6 average on IMDb from over 8,400 votes, putting it in solidly decent-but-not-great territory across all three scoring systems — consistent with a film whose best ten minutes are genuinely great and whose structure around them is less so.

FilmRated's take

Whalefall earns a 75 from FilmRated. It's a film worth seeing for the inside-the-whale sequences alone — they're some of the most unusual, well-executed set pieces a studio survival thriller has attempted in years — but go in expecting the flashback structure to periodically let the air out of the tension Duffield works hard to build everywhere else.