Brad Pitt is sharing a behind-the-scenes look at the remarkable canine partnership at the centre of Heart of the Beast, David Ayer’s upcoming survival thriller about a soldier and his combat dog fighting their way through the Alaskan wilderness.
Pitt stars as James Belmont, a Special Forces officer whose journey becomes a brutal fight for survival after a catastrophic plane crash leaves him stranded far from civilisation.
His most important companion is Odin, the retired combat dog who survives the crash alongside him.
The new featurette shifts the focus away from the film’s action and onto the relationship between the two characters — and, just as importantly, the real connection that developed between Pitt and the dog playing Odin.
Odin is primarily portrayed by a German Shepherd named Uber, a rescue-trained canine who quickly became one of the most important members of the production.
Pitt describes working with Uber as a special experience and jokes that the dog was effectively “number one on the call sheet.” That affection is evident throughout the behind-the-scenes footage as the pair train, rehearse and work together in demanding outdoor conditions.
For director David Ayer, the relationship between James and Odin is not simply an additional emotional element of the film. It is the story.
The filmmaker has described Heart of the Beast as a love story between a man and his dog, using their struggle through the wilderness to explore grief, trauma, loyalty and emotional healing.
That gives Pitt’s character a very different kind of survival partner.
Odin is not merely an animal following James through dangerous terrain. As a former combat dog, he has experienced many of the same environments and psychological pressures as his human companion.
Both characters therefore enter the wilderness already carrying scars from their previous lives.
Their crash forces them to depend on one another again.
The official synopsis places James and Odin deep in the Alaskan wilderness, where they must battle extreme weather, dangerous terrain and the physical consequences of the accident while attempting to find their way back to civilisation.
Much of the film was actually shot in remote locations across New Zealand, with mountainous terrain and glaciers standing in for Alaska.
The production frequently travelled by helicopter to reach isolated shooting locations, creating conditions that allowed Pitt, Uber and the filmmaking team to work inside genuine wilderness rather than relying entirely on studio environments.
Uber also underwent extensive training for the role with animal trainer Andrew Simpson, allowing the filmmakers to capture complicated interactions between James and Odin while preserving the spontaneity that makes the dog feel like a genuine character rather than a filmmaking effect.
The behind-the-scenes footage highlights how carefully those moments were constructed.
Pitt and Uber had to develop enough trust for physical scenes, quiet emotional sequences and demanding action moments to feel natural on camera.
That relationship may ultimately prove to be the film’s greatest advantage.
A survival story can create tension through mountains, freezing temperatures and physical danger, but Heart of the Beast appears equally interested in the emotional question underneath them: how far will someone go to protect the companion who has survived everything with them?
The film also reunites Pitt with David Ayer more than a decade after they worked together on the 2014 war drama Fury.
Ayer directs from a screenplay by Cameron Alexander, while Pitt also serves as a producer through Plan B Entertainment.
J.K. Simmons and Anna Lambe join Pitt in the cast.
But if the new featurette is any indication, the film’s other major star walks on four legs.
Heart of the Beast arrives exclusively in cinemas on September 25, 2026.
Watch the behind-the-scenes featurette below.
