(Video Link)
Tevye may work as a dairyman, but he was born to dance. YouTube user ACDPresents, a film student, made this carefully-timed video for an editing class. It mashes up video from 1971 musical Fiddler on the Roof and audio from the 2004 movie You Got Served.
via Legal Insurrection
Previously: Bottle Dancers
I did something similar in 2006, with the trailer for "Weird Science" and a bunch of clips from 1960s educational films on STDs.
http://www.youtube.com/watch?v=UbxzDS9OsvU
It was for some web contest, but disqualified me for sampling copyrighted audio.
Oh, the newfangled internet boxes and their rules.