Several of the above are right up there for me too. I'd elabrate on Dirty Harry--the "do ya feel lucky, punk. Well do ya?" was pretty cool, including the footage right before where he's choking down his sandwich/hot dog, firing into the perp's windshield. The later long shot across the football field was iffy but cool. (But that .458 Win. rifle choice was from another planet.) Although I tend to favor autos in real life revolvers can be much more tactile and interesting in films. Well, what can you do with a Glock on screen that lends itself to visual or auditory interest? Guess that's why autos have to go clickety-click and have their slides racked all the time. They look cool--arguably--but are uncinematic. There seem to be more revolvers coming back to movies, especially those big-bore short barreled models from S&W. Very nasty looking and camera-friendly. One new nomination here: Taxi Driver. Powerful and not gun-stupid.
Ross