The animated family film Zootopia already dealt with some dark themes—racism, drugs, government conspiracies*—but this clip of an old animation storyboard (with voice acting) shows that it was originally heart-wrenching. In the version that made it to theaters, old suspicions still exist between species that were once predators and those that were once prey, but they live in legal equality. In the old version...well, let's just say this is one of the most depressing kids' birthday parties ever put in a cartoon: