Santa Calls

Shortly after 20th Century Fox bought Blue Sky Studios, the studio planned on making their first feature film that was going to be an animated adaptation of the children's book Santa Calls by author William Joyce.

Plot
It follows Santa Claus asking three gifted children to help him defeat an army of dark elves and save Christmas.

Why It Was Cancelled

 * 1) There were difficulties to improve the CGI animation.
 * 2) There were some problems with the production.
 * 3) A short film called Bunny was made.

Result

 * Blue Sky Studios announces Ice Age