Brian De Palma two categories, his psychological thrillers ("Sisters", "Body Double", "Obsession", "Dressed to Kill", "Blow Out", "Raising Cain") and his mainly commercial films ("Scarface", "The Untouchables", "Carlito's Way", and "Mission: Impossible"). He has often produced "De Palma" films one after the other before going on to direct a different genre, but would always return to his familiar territory. Because of the subject matter and graphic violence of some of De Palma's films, such as "Dressed to Kill", "Scarface" and "Body Double", they are often at the center of controversy with the Motion Picture Association of America, film critics and the viewing public.
Brian De Palma is noteworthy for its use of various experimental techniques to convey its narrative in ultimately unconventional ways. Footage was sped up, rapid cutting was used to distance the audience from the narrative, and it was difficult to discern with whom the audience must ultimately align. "Greetings" ultimately grossed over $1 million at the box office and cemented De Palma's position as a bankable filmmaker. After the success of his 1968 breakthrough, De Palma and his producing partner, Charles Hirsch, were given the opportunity by Sigma 3 to make an unofficial sequel of sorts, initially entitled "Son of Greetings", and subsequently