There is something so infectious about a dance sequence that, even in movies and TV shows in which they occur pretty much out of nowhere and, in theory, should not work, they still do in most cases.

Joel Sill, a music supervisor for more than 150 movies, including such cinema classics as Easy Rider, Flashdance, Forrest Gump and An Officer and a Gentleman, passed away Aug. 23 at his home in ...