15. Carefree and Footloose!
Carefree was a powerhouse in design. Fred Astaire and Ginger Rogers made it, and Irving Berlin wrote all the songs. Incidentally, it is also the shortest of the Astaire and Rogers films, coming in with only four feature musical numbers. Four of the featured songs were written by Irving Berlin in just a few days. While he was on vacation, at that. Most notably, the track “I Used To Be Colorblind” was recorded at four times speed, so when played back at normal speed, it appeared to be in slow motion.