I initially saw this clip, or part of it, in a NOVA program on embryology or Evo-Devo... I could be wrong. It is hands down the most fantastic and inspiring rendering I've seen - specifically the part with the motor protein (yes I know it's Dan Dennett's favorite too). I'll include both the short motor protein clip with the music, and below that you'll find the full animation with narration as to what's going on in each sequence. The RNA to protein translation sequence is fantastic as well - keep an eye out!