As a warmup exercise for animation this semester I created this mock movie trailer. The scenes are cut together from various sources, mostly other movie trailer. After you've watched it through, you can click over the the Vimeo page where I have a listing of all the sources. If you can, watch it full screen and with the volume turned WAY up.
I will give you one clue to listen for, see if you can spot the bit from Muppet Treasure Island.