A Nightmare Before Christmas (1993)

Some kind of skeleton (or rag doll) finds out that Santa Claus was kidnapped by a creepy pin cushion (or rag doll). I remember this movie being about as dark, subversive, and interesting as the doodles of a 12-year-old girl who recently learned that it's cool to wear black.

Oh, and it's a musical! Remember, kids: it can't be schmaltz
or sentimentality if there's graveyard imagery in it.