Landscape
One of the film's most noticeable visual shifts happens as the story progresses.
Fiore describes the filmmakers' approach as moving from “an impressionist dream” toward “an expressionist nightmare.” Early scenes are designed to feel poetic, expansive, and almost magical. As Belmont and Odin become increasingly isolated and vulnerable, those same qualities begin to feel more threatening.
Fiore says Ayer wanted audiences to question how much of what they see represents reality and how much reflects Belmont's subjective perception.
“By the end of the film, they are in purgatory. David wants the audience to be unsure of how much of what they’re watching is James’ subjective perception, almost dream imagery, and how much is reality,” Fiore said.
As Belmont's physical exhaustion and psychological strain intensify, the distinction between external danger and internal experience becomes increasingly blurred.
The wilderness may dominate the frame, but Heart of the Beast is ultimately concerned with the relationship between Belmont and Odin.
With Brad Pitt and the German Shepherd Uber carrying much of the film, Fiore had to make individual shots communicate character, tension, and emotion without relying on a large ensemble cast.
“It’s just Brad Pitt and four incredibly talented dogs. The focus and intensity were unparalleled. Every camera choice, every shot, the flow, the visuals, it was all critical,” Ayer added.