Hooves of Fire (1999)

Robbie the reindeer is determined to win a place pulling Santa's sled. Unfortunately, he's got two problems facing him. One, he's sadly out of shape; two, he doesn't realize his pal Blitzen is cheating! Confused by the temptations of sexy lady reindeer Vixen, and completely unaware of bubble-headed Donner's love for him, Robbie faces the race of his life.