Dumbo(1941) - Jumbo Jr. Becomes Dumbo

A young circus elephant is born with comically large ears and given the cruel nickname Dumbo. One day at a show, he is taunted by a group of kids, inciting his mother into a rage that gets her locked up. After Dumbo’s ears cause an accident that injures many of the other elephants, he is made to dress like a clown and perform dangerous stunts. Everything changes when Dumbo discovers that his enormous ears actually allow him to fly, and he astounds everyone at the circus with his new talent.(google) Distributed by RKO Pictures.