SAN FRANCISCO -- In Pixar's newest short "Loop," all a boy and girl have to do is get in a canoe, paddle around a city lake, and get back. But there's a catch. He talks a lot, and she doesn't at all.

With “Loop,” the animated short about the inner world of a non-verbal autistic 13-year-old girl (currently streaming on Disney+), Pixar achieved yet another inclusion and diversity breakthrough. It ...