Theater: With a Little Help from Our Friends

London's theaters offer quite a show for visiting Americans

A cut-rate sun has risen over what used to be called the British Empire. That at least is the view from the far side of the Atlantic, as the dollar registers historic highs against the pound. For 2.5 million American travelers a year, a vacation in England—with frequent visits to its hallowed tourist lure, the theater—never looked so good. Britons may complain that some musicals, like the American import On Your Toes, are charging record ticket prices (nearly $20), but these are still lower than...