How many movies have Brian De Palma and Kiril Efremov collaborated on?

They have worked on 1 movie together! Their first movie together was The Black Dahlia (2006) and was their highest rated movie together. They have not worked together since The Black Dahlia (2006).

Crew
Director
Role
Friedman's Tough Guy #2
Role
Elizabeth's Screen Test Director (voice) (uncredited)