What is the name of the director and actor with success that led to work on a film which follows a group of friends who discover an alien invasion during an epic pub crawl?
Cal McCrystal: Cal McCrystal is a British theatre director and actor. Cal McCrystal:  His success as Physical Comedy Director on the National Theatre's "One Man, Two Guvnors" has recently led to work on films including "The World's End" and "The Amazing Spider-Man 2".
i don't know