When Will thinks that Hannibal is psychoanalyzing him, Will says "don't psychoanalyze me. You wouldn't like me when I'm psychoanalyzed." This is a play on a line from The Incredible Hulk, when David Banner warns people "don't make me angry. You wouldn't like me when I'm angry."
Hannibal Lecter, portrayed by Mads Mikkelsen, is listening to Bach's Goldberg Variations when he is first introduced. This piece of music is also playing in the 1991 classic when Lecter (Anthony Hopkins) murders the two officers in his cell.