Most, in fact, move like C-3PO. To be fair, that Star Wars protocol droid was Actor Anthony Daniels in a stiff plastic suit, gamely trying not to succumb to the African desert heat. Even so ...

The Empire Strips Back has a busty C-3PO gyrating on stage, plus naughty Stormtrooper routines and other versions of the sci-fi characters. Yoda even rocks with an electric guitar at the show ...