Santa Mouse and the Ratdeer is a 2000 English-language Animation Adventure movie. Santa's mouse and the rat deer -- Rosie Mouse's exitement about the coming christmas holidays is not shared by everyone. Whilst Rosie is eagerly anticipates christmas, Santa Mouse has grave doubts about the holiday. His sleigh is missing and his ratdeer are anything but exited about the trip around the world. Written by Zelig. Santa mouse and the ratdeer stars Emily Hart in the title role along with an ensemble cast including Melissa Joan Hart, Ewan 'sudsy' Clark, Philip Maurice Hayes, Saffron Henderson, Peter Kelamis and Scott Mcneil.