Re: Why Mark Ruffalo?
^That whole scene was something you would have read in the comics. One panel would have featured him saying "That's my secret, Cap....", followed by the next panel showing him Hulking out and finishing the phrase, "...I'm ALWAYS angry."
If the person you're seeing ever asks the question "Who is Stan Lee?", promptly kick their ass to the curb.
Who the **** makes a movie and while planning it is like, "you know what this needs...is some Greg Kinnear."