While fanboys around the world speculate about who will play Ultron, Quicksilver, and Scarlet Witch in The Avengers: Age of Ultron, writer-director Joss Whedon offered a few tidbits about fan-favorite characters already established in the sequel.

The filmmaker reveals that not only is this Marvel Phase Two movie a global adventure, but that Jeremy Renner's Hawkeye will have a bigger role.

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"It's very much a global Avengers film. A lot of the movie has to do with their place not just in America, but the world. Part of the fun for me, definitely this time around, is writing Hawkeye. He did get possessed pretty early by a bad guy and had to walk around all scowly for most of the movie, so now it's nice to actually have the character there and see him interact with the other guys."

He also said that Scarlett Johansson, who reprises her role from Marvel's The Avengers as Natasha Romanoff, a.k.a. The Black Widow, also has an expanded role.

"Natasha is a huge part of the sequel because you do want to concentrate on the people who don't have their own franchises. Although she in Captain America: The Winter Soldier, [and] she's great. She was the most fun for me because she's not a hero, you know, and it's something that I read-and I feel bad that I can't remember who wrote the book-but it's in one of the books explaining, 'These guys are heroes, you are a spy. It's a different thing-it's a different skill set-and you don't have their moral high ground or any of that good stuff.' And that just makes her so interesting to me. So yeah, the stuff I've got going on with her in the second one is killer."