MGM is putting some of its money where its mouth is and rebooting its subsidiary Orion Pictures to focus on films from diverse voices, headed by Alana Mayo, who will have the most coveted power in Hollywood; the power to greenlight a project.

Power in Hollywood still belongs almost exclusively to white men. “There are almost no people of color in the film industry who have the power to say, ‘This movie is getting made and by this person,’” said Ana-Christina Ramón, an author of studies about Hollywood hiring that are published annually by the University of California, Los Angeles.

On Thursday, Metro-Goldwyn-Mayer, the 96-year-old home of James Bond, Rocky and RoboCop, took a modest yet meaningful step toward correcting the imbalance, hiring a young producer, Alana Mayo, to remake its Orion Pictures division to focus exclusively on underrepresented filmmakers and stories. Ms. Mayo will lead a greenlight committee made up entirely of women — meaning the chairman of MGM’s film group, Michael De Luca, will not have a vote in selecting the films that Orion makes or acquires for distribution.