Best use of a song in a film

[Vas Deferens]

Lots of damn good examples here.  Kind of requires you see the rest of the movie, but this 2001 anime remake of the classic metropolis has a beautifully put together ending that incorporates Ray Charles' I Cant Stop Loving You.  Really good movie, and I am in no way into a lot of anime type stuff.  For the time it was put out, the animations are really crisp.


~45 build up before Ray gets dropped in this clip.  Just throwing it out there.