See Scott Disick as American Psycho’s Patrick Bateman

Scott Disick hosts An American Psycho-Themed Halloween Party on October 27, 2012 in Las Vegas, Nevada.  Bryan Steffy/WireImage.com

Halloween double take!

Hosting a costume bash at 1 Oak Nightclub in Las Vegas Oct. 28, Kourtney Kardashian's reality star boyfriend Scott Disick eerily resembled another famous on-screen celeb: Christian Bale in American Psycho.

Dressed to kill as Patrick Bateman, Disick, 29, carried an ax to further personify Bale's movie character, a wealthy Harvard-bred serial killer. The terrifying, darkly comic protagonist in the 2000 film, Bateman was first brought to life in Bret Easton Ellis' novels The Rules of Attraction and American Psycho. (Reese Witherspoon played Bateman's yuppie girlfriend in the flick.)

In 2010, Disick's girlfriend, 33, and her sisters Kim and Khloe said they could see actor Bale, 38, playing Disick if Keeping Up With the Kardashians was ever made into a movie. "We see a definite resemblance there," they wrote on their website of the duo.

christian bale american psycho
Christian Bale in "American Psycho" Lions Gate/courtesy Everett Collection

Speaking of Halloween, Disick told Us his 2-year-old Mason may also don a movie-inspired ensemble on Oct. 31. "He loves Batman," Disick — also dad to Penelope, 3 months, said.

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