Set designer Tony Walton has worked on everything from the plays of John Guare and Anton Chekhov to the musicals of Stephen Schwartz and Stephen Sondheim -- not to mention such iconic films as Murder on the Orient Express and All That Jazz -- amassing shelves of awards in the process. Now the self-described "ancient geezer" is back on Broadway as designer of the musical version of Charles Dickens' A Tale of Two Cities at the Al Hirschfeld Theatre. Recently, Walton took a break from working on this massive show -- which consists of nearly 50 scene changes -- to sit down and discuss the project.