MARK SHENTON

Typically, of course, American plays launch in America before heading across the ocean (and vice versa). But at the moment, playwright Adam Bock, a Montreal native who’s based in New York City, is thwarting that trend. Though he has a long history of New York productions, his latest play, The Colby Sisters of Pittsburgh, Pennsylvania, is currently making its world premiere at London’s Tricycle The

In the West End’s Blithe Spirit , Angela Lansbury’s past is always present —