The New Regency project is adapted from the Michael Punke novel and the producers are planning for a September start, said the Hollywood Reporter.
The film is a about a gold-seeking fur trapper who is mauled by a bear. When the two men who are were supposed to take care of him rob him and leave him to die alone, the man wills himself to survive and goes on a 350 mile journey though the wilderness to survive.
Inaritu has been working on the project since at least 2011 and even met with DiCaprio and Sean Penn to star.