Colin Marshall talks to cultural journalist Saul Austerlitz, author of Money for Nothing: A History of the Music Video from the Beatles to the White Stripes and, most recently, Another Fine Mess: A History of American Film Comedy, which examines the careers of beloved U.S. comedy icons like Woody Allen and the Marx Brothers as well as more cultishly comedic figures like Albert Brooks as well as filmmakers not normally associated directly with comedy, like Robert Altman and the Coen brothers.