Get Carter (1971)

Synopsis
Get Carter stars Michael Caine as Jack Carter, a powerful British gangster out for blood. His brother has been murdered in Newcastle, prompting Carter to declare a one-man war on other racketeers. Carter must also get his niece out of the life she is leading as an actress in pornographic films. Now that he is a loose cannon, Carter must be eliminated. Get Carter is typical action fare of the 1970s in that there are virtually no "good guys" -- in fact, the assassin is probably the most likable character in the piece! Originally rated X for violence and female nudity, Get Carter was reclassified as an R after subsequent crime films became even more bloodthirsty. ~ Hal Erickson, All Movie Guide