“Whalefall,” a survival thriller directed by Brian Duffield and based on Daniel Kraus’s 2023 novel, centers on Jay Gardiner, played by Austin Abrams, who finds himself trapped inside a sperm whale. The film explores themes of grief, family conflict, and self-discovery as Jay struggles to survive the grotesque and claustrophobic environment within the whale’s stomach.

The story begins with Mitt Gardiner (Josh Brolin), an expert diver and Jay’s father, who suffers from a persistent cough and ultimately disappears at sea, presumed dead after leaping overboard from his boat off the California coast. A year after Mitt’s disappearance, Jay returns home from college in Iowa to secretly dive in hopes of recovering his father’s body, which was never found and whose funeral was held with an empty casket.

Jay’s dive ends abruptly when he is swallowed by a giant sperm whale, initiating the film’s central survival ordeal. Trapped inside, Jay contends with painful injuries, the whale’s active organs, and a threatening giant squid. The film’s majority takes place within this confined, unsettling space, punctuated by flashbacks revealing Jay’s fraught and abusive relationship with Mitt.

Critical response to “Whalefall” highlights its intense and unsettling depiction of life inside a whale, with the claustrophobic production design and Abrams’s performance receiving praise for their visceral impact. Jay’s emotional state—marked by panic, pain, and terror—is central to the film’s drama, and the survival sequences involving inventive solutions, such as using a jellyfish for light, have been noted for their suspense and creativity.

However, reviewers also point to some narrative and thematic challenges. The film’s portrayal of the father-son relationship is deeply rooted in tension and unresolved trauma, with Mitt characterized as a one-dimensional, harsh figure. Some critics question Jay’s motivation for seeking his father’s body given their history, as well as the plausibility of certain plot developments, including flashbacks that occasionally extend beyond Jay’s own knowledge, which disrupt the film’s emotional credibility.

Despite these criticisms, other perspectives appreciate the film’s emotional core, emphasizing Jay’s journey toward acceptance and catharsis. The narrative frames the ocean as a symbolic space, with Mitt’s repeated phrase "the ocean provides" underscoring Jay’s gradual understanding and reconciliation with his father’s legacy. The film blends elements of horror and surrealism, resulting in a spiritual and hallucinatory tone that, while heavy-handed at times, offers a distinctive take on the survival genre.

Overall, “Whalefall” combines a visceral survival story with an exploration of familial grief, presenting a challenging but evocative experience centered on one man’s confrontation with mortality, memory, and the natural world.