Though plenty of viewers had their heartstrings yanked by the nail biting garbage compactor scene in the third act of Toy Story 3, it was the original animated feature by Pixar which proved most unsettling. When Woody and Buzz are taken by evil next door neighbour Sid, a toy murderer with a disturbing agenda, they meet all the other toys unfortunate enough to have come into Sids possession. After seeing the happy, quirky, fun toys in Andys room, its utterly shocking and appalling to see Sids collection of mutant toys; including a rag-doll with the head of a pterodactyl and a three way combination of a strong man action figure and a Pez dispenser with a duck head both attached to a spring-loaded base. The most unsettling of all is the leader of the mutants: a shaved baby dolls head with mechanical legs attached at the neck. They toys are made less scary as the movie progresses and eventually you can root for them, but upon first reveal, Sids toys scare the crap out of you, and for some are still hard to look at to this day.
