The Wild Robot is a heartfelt story is about motherhood and kindness. It’s also about sacrifice. Paul Asay with Plugged In shares about this familiar theme present in a lot of kids' movies which just might make viewers, especially the adults, a little misty-eyed. Is Hollywood out to make kids cry? Perhaps something else going on here. The over-arching question is, 'Why are so many great kids movies sad?' Is that a good thing?