Billy Crystal and Helen Mirren Are Vampires in When Sharon Bit Harry Matt Cherette · 04/07/11 02:19AM Funny or Die videos often suck. Once in awhile they're great. This is one of those times. Here's a fake trailer—plus some behind-the-scenes footage—for Grampires: When Sharon Bit Harry, starring Billy Crystal and Helen Mirren. [Funny or Die]