Bill Cosby has joined director Robert Townsend's documentary Why We Laugh: Black Comedians on Black Comedy. Cosby joins a cast of comedians that include Chris Rock, Steve Harvey, George Wallace, Paul Mooney and Katt Williams, among others.

According to The Hollywood Reporter, the Codeblack Entertainment documentary is inspired by a book by comedian and writer Darryl Littleton, and is a no-holds-barred, raw, uncensored and truthful look at black comedy and its cultural influence. It also takes a critical examination of the social impact of black comedy and its notable artists.