The Guardian reviews The Devil's Mouth, a new Amazon Prime shark thriller released during Shark Week, which follows a group of American college friends whose Thailand holiday turns deadly when they become trapped in a cave system with an aggressive bull shark. The review notes that 2026 has become saturated with shark films, roughly six released so far with more on the way, prompting the critic to question whether this one adds anything new to the well-worn "swim, stalk, slash" formula.

The film's distinguishing feature is its focus on a toxic friendship between two lead characters, Max (Lana Condor) and Sara (Kathryn Newton), whose fraying bond provides added tension alongside the shark peril, though the critic feels this angle isn't fully realised compared with stronger genre entries. The cast also includes Nico Hiraga, Gavin Casalegno and Tommi Rose, with the group's guide played by Tayme Thapthimthong. The setup draws comparisons to 2019's 47 Meters Down: Uncaged, and the review situates the film within a crowded field of recent shark movies, including Deep Water and Above & Below.