Some fans felt that Jeremy Renner's Hawkeye/Clint Barton was the weakest member of the superhero roster in the first Avengers movie last summer and, apparently, Renner felt the same way. But that is set to change in The Avengers: Age of Ultron in 2015.
Renner said the following about his character in the first film, according to Screen Rant:
"At the end of the day, 90% of the movie, I'm not the character I signed on to play. I'm literally in there for two minutes, and then all of a sudden... All I could really work on was the physical part of it all, because that didn't change. That was just the biggest challenge to overcome in playing the guy. Also, we're pretty much introducing a new superhero character to everyone in a movie where there's a thousand superheroes. So there's not a lot of back story or understanding we can really tell about who Clint Barton is, or Hawkeye, and is he working for SHIELD or not. There's a lot of unanswered questions, even for me. And I was OK with that. At least I was still in the movie. And I was glad for that. The closest thing I could really link to was Scarlett [Johansson's] character, Black Widow, because they have a history. And that definitely plays in the movie, I think. And obviously, you can't go into too much just because there's so much story to tell, but you definitely get a sense that they're connected, and that there's something really, really important that ties them together. And I could try to summarize it, but it can go a lot of places. That excites me, though, that there's room for other things."
But writer/director Joss Whedon said at San Diego Comic-Con 2013 that Hawkeye will have a different feel in the sequel:
"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."