Anakin kills younglings in Star Wars III -- After Newtown, an intolerable cinematic moment

Post-Newtown, it was a bit disturbing to watch Star Wars III (Revenge of the Sith) with my 9 year old and come across the scene in which a 20 year old Anakin Skywalker go into the Jedi pre-school to kill all the "younglings" as his final task before becoming Darth Vader.