#6: Avengers: Age of Ultron
Directed and written by Joss Whedon. Produced by Kevin Feige. Release date: May 1, 2015.
Okay, go ahead and call me a "Marvel fanboy" if you want, but I really enjoyed Avengers: Age of Ultron. Sure, it's not quite as good as the first team-up movie, but it's still got a lot of great action, tons of laughs, and a surprising amount of depth. It's not the best Marvel Cinematic Universe movie, but it's tough to have more fun watching a movie, especially if you're invested in this franchise.