The actor moved to LA 22 years ago. Now she's back in the UK to star alongside Bryan Cranston in All My Sons. She talks about the frightening rehearsal schedule, how she'd work again with Mike Leigh in a heartbeat, and why she's taking up boot-making Marianne Jean-Baptiste arrives at the rehearsal space in  Southwark, south London, and immediately announces that she's exhausted. It wouldn't be surprising …