Last cartoon ever produced by Max Fleischer who produced the Popeye the Sailor man, Betty Boop and Koko the Clown cartoons from the 1910's to the 1940's.
At multiple times during his flight, Santa appears to have toy Rudolphs in the back of his sleigh.
Because of music copyrights, most video presentations and TV broadcasts have to remove the title song and replace it with public domain Christmas music.