First, "O Brother, Where Art Thou?" filmmakers Joel and Ethan Coen join actors George Clooney, Tim Blake Nelson, and John Turturro for a discussion of the film, which follows three convicts on the run from the law in the 1930s. Then, an interview with Mark Cuban, president and co-founder of Broadcast.com and owner of the Dallas Mavericks, about his business career in the dot-com era. Finally, screenwriter Stephen Gaghan talks about his new film, "Traffic", directed by Steven Soderbergh.