According to Wentworth Miller, the casting agent did not believe that he was part-African American like the character Coleman Silk. Miller also told the casting agent about an incident at Princeton University. While he was a student there, he published an editorial cartoon in the campus newspaper that was misconstrued as a racial slur against Professor Cornel West. Silk has a similar situation in the film. Miller faxed family pictures and articles about the controversy to prove his story. West later attended the film's premiere and made up with Miller.