R | | Action, Crime, Drama
When a mad man calling himself 'the Scorpio Killer' menaces the city, tough as nails San Francisco Police Inspector Harry Callahan is assigned to track down and ferret out the crazed psychopath.
In the pool scene at the beginning of the movie, the pool seen on the rooftop is the same as the one Clark Griswold plays with while at work in National Lampoon's Christmas Vacation (1989).
Now you know why they call me Dirty Harry: every dirty job that comes along.
At the cross on Mount Davidson, Scorpio makes Harry toss his gun a good distance away onto concrete, which would cause noticeable damage to the revolver's blued finish. However, in the final scene (when Harry again delivers his famous speech,) there is no visible damage to the weapon.
During the opening credits, the word "Dirty" in the title is in brown as opposed to the rest of the credits' yellow.