There are plenty of classical music cliches in movie history, but perhaps none catchier or featured more prominently in popular films than Richard Strauss's 'Also Sprach Zarathustra.'

You probably know it best as the theme from '2001:A Space Odyssey' or as that song that plays every time a scene needs to be more EPIC! The moment it starts, you know something awe-inspiring is about to happen.

To prove just how engrained in our pop culture lexicon it has become, we have compiled an obscene number of music cues for your viewing pleasure. Here is our selection of the best and worst examples of those infamous five notes: Dun ... dun ... dun ... DUH-DUH!!