Originally Posted by JB-the-Hunter
It's not going to be an exact adaption of that story, so he doesn't have to have had an impact in the comics.
There's no reason Hawkeye can't be in it as a supporting character. I'd hate to have to wait until Avengers 2 to see him again. He'd have a great dynamic with every character in the movie. He can develop a relationship with Cap, continue his relationship with Black Widow, and even act as a foil to Winter Soldier.
If only to not have to wait until Avengers 2, then putting him would make some sense. I'm just not sure how much he'd be in it when you'd also have BW, Falcon, Sharon Carter, WS, Fury, and whoever the villain is. Almost seems like a waste of Renner's talent to use him so sparingly.