LONDON — The London production of "Book of Mormon" won best musical at the Olivier Awards on Sunday, and its star Gavin Creel took home the award for best actor in a musical. A staging of Stephen Sondheim's one-time flop "Merrily We Roll Along" won the award for best musical revival while an adaptation of Ibsen's "Ghosts" was another big winner at Britain's biggest night for theatre. The play "Chimerica" examining the relations between China and America won best new play award for playwright Lucy Kirkwood and best director award for Lyndsey Turner, and overall was the biggest award winner, taking away five. "To come to the West End for us was a privilege and this award is an absolute honour," Anne Garefino, co-producer of "Book of Mormon" said in accepting the evening's top award for the London theatre district production of the show by "South Park" creators Matt Stone and Trey Parker. — Reuters