and felix the cat. but then mickey mouse comes along and is considered the first sound cartoon character. ♪ >> not only did walt disney add sound with the first mickey mouse cartoon, but they were funny sounds. >> at the time there's no animation to look at because no one was doing animation. so they looked at chaplin or they looked at buster keaton, or they looked at laurel and hardy. it was a good way for them to hone up their animation skills. >> chaplin said, oh, my gosh, mickey mouse is going to put me out of work because the mouse could do magically almost anything. ♪ >> meanwhile, the fleischer studio was disney's biggest rival. cartoons were in black and white, and they're grittier. they're dirtier, and they've got a lot of we'irdo characters youd only find in the subway. >> max fleischer studios had a