On Monday night, all eyes in Cannes will be on the launch of “The Apprentice,” the high-profile drama that stars Sebastian Stan as a young Donald Trump. The filmmakers and stars haven’t done any press on the ground at Cannes ahead of the film’s world premiere, and few have seen it, with plot details shrouded in mystery. 

But one person who has seen it is Dan Snyder, the billionaire former owner of the Washington Commanders who is an investor in “The Apprentice.” And he isn’t happy. 

Behind the scenes, a nasty battle has played out between the Snyder-backed company Kinematics and the filmmakers over the creative direction of the film. “The Apprentice,” directed by Ali Abbasi, covers Trump’s early years…