The week in theatre: The Collaboration; Good Fun
Young Vic; King's Head, LondonWarhol and Basquiat prove fertile inspiration for writer Anthony McCarten, while a rare airing of an early play by Victoria Wood reveals more than a glimpse of the marvels to come In 1984, the Swiss art dealer Bruno Bischofberger put a wheeze to Andy Warhol and Jean-Michel Basquiat: the two painters should work together and have a joint exhibition. Warhol's reputation was fading, Basquia…