American Psycho is based on the novel by Bret Easton Ellis. It was released as a film, starring Christian Bale in 2000 and then adapted into a musical for its run at London's Almeida Theatre in 2013. The London production featured Matt Smith as the lead character, Patrick Smith. Matt is best known for his role in the BBC series Doctor Who. Music and lyrics were composed by Tony Award winning Duncan Sheik.