Hardrock, Coco and Joe — The Three Little Dwarfs Hardrock, Coco and Joe is a short stop motion animated cartoon based on a song written by Stuart Hamblen. It is about three of Santa Claus' helpers who ride on Santa's sleigh each Christmas. Details Casts Videos Posters Title Hardrock, Coco and Joe — The Three Little Dwarfs Release Date 1951-12-25 Runtime 00 Hours 03 Minutes Genres Family Animation Production Companies Centaur Productions Production Countries United States of America Hardrock, Coco, and Joe (Trailer) Original Size (510x750)