During the initial run at the Royal Court,
Keith Moon turned up drunk at the stage door, joined Helen Mirren in her dressing room and told her how great the show was, and then tried to join the cast on stage before being stopped by the management. Helen Mirren's interpretation of Maggie was based on
Janis Joplin. She said of the role at the time: "I’m very like Maggie in many ways, only she’s much more ballsy and gutsy than me. I endorse most of what Maggie says, in fact in many ways it’s difficult to talk about her because I feel so close to her." ==References==