25 Years Later, ‘American Psycho’ Director Has Message for ‘Wall Street Bros’ Who Idolize Patrick Bateman

American Psycho has been a part of the cultural conversation for nearly 35 years, beginning in 1991, with the release of Bret Easton Ellis’ controversial novel about Patrick Bateman, a spoiled Manhattan yuppie who spends his days pretending to be an investment banker and his evenings eating butter soup with smoked duck at Dorsia… and possibly murdering people.

In 2000, Mary Harron directed a jet-black adaptation of Ellis’ novel starring Christian Bale. And she has spent the past 25 years trying to figure out how Bateman...