Photo-Illustration: Vulture; Photo: Lionsgate As a successful actor, Justin Theroux doesn’t need to carry around a business card. But 25 years ago, he was exchanging cards across a table in a conference room at Pierce & Pierce, a Wall Street investment firm that employed Timothy Bryce and his murderous co-worker, Patrick Bateman. American Psycho , which stars Christian Bale as a sociopathic yuppie, was one of Theroux’s first major roles, though the now-iconic scene did not give him an