Mad Dog Coll is a 1992 American drama film directed by Greydon Clark. It stars Christopher Bradley and Bruce Noizick. It was released in the United States on home video as Killer Instinct.
Vincent Coll starts off as a New York street-fighter, and moves quickly all the way up to being a criminal kingpin in the mafia, and engages in a turf war with fellow mobster, Dutch Schultz.
TV Guide described the film as a "predictable but energetic gangster film."