Avengers: Endgame will live up to its title, as the film will end the current era of the Marvel Cinematic Universe as we know it - and likely a few central character arcs, as well. Behind-the-scenes, Marvel Studios will see some of its most prominent stars fulfill their Marvel Cinematic Universe contracts in full when Avengers: Endgame comes out - and the biggest loss fans expect is none other than Robert Downey Jr.'s Tony Stark / Iron Man. We've known for awhile that Downey is but one big MCU contract ending with Avengers: Endgame, as Captain America actor Chris Evans previously revealed that he, Downey, and Chris Hemsworth are all contractually done with this fourth Avengers movie: ?Myself, Downey, Hemsworth, we all kind of started roughly at the same time, and I think we all, through Avengers 4, kind of wrap it up,? Evans said.