I've just re-watched 1967's The Incident in honour of the fact that I have finally found a DVD copy of it on the internet, so I won't have to rely on my crappy VHS anymore. It's easily in my top 3 favourite movies of all the time, the way the tension builds up is amazing.
Youtube has it too:
http://www.youtube.com/view_play_lis...F8C21C4718E929