I know this will sound stupid, but how are they gonna kill off Oogie in the end? He's just a bag full of bugs.
However, the stage design would look really cool.
"During this performance, please feel free to let your cell phones and pagers ring willy-nilly. However, do remember that there are heavily-armed knights on stage and you might well be dragged up and impaled."
(Pre-curtain announcement at the new Broadway musical Monty Python's Spamalot)