Though he signed a two-picture deal to appear in "Avengers: Age of Ultron" and an upcoming third "Avengers," actor Robert Downey Jr. has previously indicated a reluctance to return for a fourth "Iron Man" outing. Maybe talks are progressing because in a recent interview with EW on the set of 'Ultron', Downey is now optimistic that it could happen so long as a deal can be made. In a textbook example of what they call "negotiating through the press," the actor says: "It's down to Kevin Feige and Ike Perlmutter and Disney to come to us with what the proposal is, and that's on us to agree or disagree.