I've always been a fan of the scene in Watchmen, myself. Perhaps the most memorable (and simultaneously awkward) is from Sex Is Comedy.
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Arcanis' 100 Favorite Films: 2015 Edition
Filmquisition: Raking Modern Entertainment Over the Coals Daily
Unrealitymag.com: New Articles Contributed Every Friday
Arcanis' 100 Favorite Films: 2015 Edition