American Psycho is a 2000 psychological thriller film based on the novel of the same name by Bret Easton Ellis. Christian Bale plays the lead role of Patrick Bateman, a wealthy investment banker who leads a double life as a serial killer. Bale's performance in American Psycho is chilling and intense, capturing the dark and twisted nature of the character. The film explores themes of materialism, identity, and the emptiness of the 1980s yuppie culture. Bale's portrayal of Patrick Bateman is widely praised as one of his best performances.