Disney / Pixar
Cameo: Rex the dinosaur
Funny or superfluous?: Funny and necessary
Blink and you'll miss one of the supporting stars of "Toy Story" sitting on Wall-E's shelves of junk. This kind of appearance certainly isn't essential to the story, but after eight major animated films, audiences have come to expect these Easter eggs, and hard-to-spot in-jokes in Pixar films. If Rex wasn't there, "Wall-E" would feel emptier somehow, even if we couldn't put our finger on what was missing.