Here's what's being talked about over the weekend in pop culture:
• Tom Hanks made a major revelation on Letterman last night: He has type 2 diabetes. [The Hollywood Reporter]
• Matt Smith, soon to finish his tenure as the 11th Doctor on the BBC hit "Doctor Who," has signed on to play the murderous Patrick Bateman in a stage musical version of "American Psycho." [Vulture]
• French director Patrice Chereau has died at the age of 68. Chereau's best-known movies include the royal costume drama "Queen Margot" and the "Big Chill"-esque "Those Who Love Me Can Take the Train." [Variety]