Adrian Grünberg is a Mexican film director and screenwriter. Grünberg is known for directing and co-writing the film Get the Gringo. He has also worked as first assistant director for films such as Mel Gibson's Apocalypto, Oliver Stone's Wall Street: Money Never Sleeps, Martin Campbell's Edge of Darkness, and Edward Zwick's Jack Reacher: Never Go Back. In 2019, he directed Rambo: Last Blood, the fifth film in its franchise.