In his new book, Paul on Mazursky (Wesleyan University Press), film scholar Sam Wasson ’03 talks to writer and director Paul Mazursky about his substantial career, which includes such memorable movies as Bob & Carol & Ted & Alice, Harry and Tonto, An Unmarried Woman, Moscow on the Hudson, Down and Out in Beverly Hills and many more. His rich human comedies, grounded in pure emotion, are hard to classify and contain scenes that are simultaneously sincere and hilarious, realistic and romantic. His works represent Hollywood’s most sustained comic expression of the 1970s and 1980s but they have not really…