Below is "Alma", a holiday short film created by one of Pixar's (Up, Finding Nemo) animators as a side-project. Rodrigo Blaas has kindly posted it online for everyone to enjoy, but only for the Christmas season as he will take it offline once the New Year arrives, so quick, take a moment to watch it while you can.
Alma is a creepy, slightly sinister tale about a little girl who becomes fascinated with a doll sitting in store window. The toy shoppe is closed, but she does her best to get inside and explore it anyway. This is NOT the kind of warm-heated story we expect for Christmas, but more of a creepy Twilight Zone-style tale to match the chill in the air outside. It may not be the kind of family fare we expect from Pixar, but it's done extremely well.