I just have never found any movie with Song/dance good, with the exception of "The Nightmare Before Christmas" and "West Side Story".
"West Side Story" is great. When playing Capture the Flag, when I've got a group in enemy territory, and the enemy is coming, rather than scatter and run, I just keep my cool and started rhythmically snapping as I approach the enemy line. If my crew gets in on it, it can be a suprisingly effective tactic.
Also, I recently discovered a Bollywood theater in the neighborhood. Only seen one film so far ("Om Shanti Om", for those curious) but it was a lot of fun, and it had quite a bit of song and dance. Hopefully I'll be checking that theater out more.