“Star Wars” and “Harry Potter” thesp Domhnall Gleeson is in negotiations to join Leonardo DiCaprio and Tom Hardy in New Regency’s “The Revenant,” sources confirm.

Will Poulter also stars in the Western with Alejandro Gonzalez Inarritu directing.

Pic will shoot this fall.

Based on the Michael Punke novel, “The Revenant” centers on a 1820s frontiersman on a path of vengeance against those who left him for dead after a bear mauling. Mark L. Smith and Inarritu penned the adaptation.

Anonymous Content’s Steve Golin, Keith Redmon and David Kanter will produce along with Inarritu, Arnon Milchan and James Skotchdopole. New Regency is co-financing the film with RatPac.

Paul Green, Brett Ratner and James Packer are exec producing.

After playing Bill Weasley in the “Harry Potter” franchise, Gleeson has been on a roll with parts in Joe Wright’s “Anna Karenina and a starring role in Focus’ “About Time.” Gleeson’s biggest break to date was landing a key role in “Star Wars: Episode VII” which is currently filming in England.

He can be seen next in the Sundance pic “Frank” opposite Michael Fassbender. He is repped by Paradigm and the Agency.