American Psycho was filmed at the Sundance Film Festival.
The Sundance Film Festival (formerly Utah/US Film Festival, then US Film and Video Festival) is an annual film festival organized by the Sundance Institute
 == Growth of the festival ==The festival has changed over the decades from a low-profile venue for small-budget, independent creators from outside the Hollywood system to a media extravaganza for Hollywood celebrity actors, paparazzi, and luxury lounges set up by companies not affiliated with Sundance

