the 2008 film "the dark knight" features a version of the joker inspired by mabuse. throughout the film, the character recites monologues promoting chaos & disorder which borrow heavily from mabuse's own in 1933's "the testament of dr. mabuse". director christopher nolan has stated: "i think i made jonah (nolan's brother) watch fritz lang’s "dr. mabuse" prior to writing the joker."