How we cite our quotes: All quotations are from The Avengers.
Quote #10
CAPTAIN AMERICA: Dr. Banner, now might be a good time for you to get angry.
BRUCE BANNER: That's my secret, Captain: I'm always angry.
Dr. Banner's big concern is keeping control over his alter-ego, since he tends to level cities when "the other guy" gets out of his pen. The big reveal here—and seriously, it's one of the coolest in the whole movie—confirms that Banner has more control over his power than he once did, and can start applying it in positive ways (like bashing rampaging monsters from outer space).