Families with kids might want to venture to Greenwich for The Gruffalo (August 6-8), where they'll see an adaptation by Toby Michell and Oliva Jacobs of the Julia Donaldson-Alex Schleffer book. And/or they can step lively to the Hackney Empire for Scooby-Doo and the Pirate Ghost (August 28-30) and see a light-hearted mystery featuring the favorite character. Families with adolescents can hop the District line to the New Wimbledon for High School Musical 2 Live on Stage! (August 22-September 9), based on the Disney telefilm.