Dumbo (1941) on Netflix

Mrs. Jumbo sadly looks on how babies are delivered by stork to colleague circus-animals but as even a baby elephant makes a most cumbersome package, so her so is just last to arrive, but soon becomes a laughing stock for the jealous herd because of his more then jumbo-size ears, so he gets nick-named Dumbo. When she can't stomach the public making fun of her firstborn, she is locked up as mad elephant, and the taunted kid finds himself all alone; well, except for a self-appointed mentor-protector, Timothy Q. Mouse -subsize, yet ideal to scare the jealous herd- who keeps motivating Dumbo. Alas inspiring the circus director to make Dumbo the top (literally) of an elephant pyramid stunt literally brings the house down, so he's demoted to clown. When everything seems lost, they accidentally discover how they ended up in a tree with a bunch of crows...