Seems like the sort of thing that would make an excellet DVD extra, but I would totally pay to see it in the theatre.
I want to see Alan Alda make a brief appearance in the next Avengers movie. He gets a phone call, looks confused and says, “I think you have the wrong Hawkeye,” then hangs up. The camera pans out and we see he is sitting with Dame Diana Rigg, who says, “The Avengers Initiative, right? Yeah, they called me, too.”