Claudio Macor directs world premiere of the new musical based o n the true story of William Haines and Jimmy Shields and their turbulent, passionate love affair that survived and lasted over 50 years. The show sta rs American actor and improvisational comedian Mike McShane as Louis B Maye r, Faye Tozer as Marion Davies and Dylan Turner as William Haines. Preview s from 13 Feb for an 8-week season. Laura Silverman reviewing.