A Pretty Sick Guy

American Psycho is a 2000 American black comedy horror film co-written and directed by Mary Harron, based on Bret Easton Ellis's 1991 novel of the same name. It stars Christian Bale, Willem Dafoe, Jared Leto, Josh Lucas, Chloë Sevigny, Samantha Mathis, Cara Seymour, Justin Theroux, and Reese Witherspoon.