Sure Clint Eastwood's Dirty Harry series is in the fore-front of all cop movies. But McQ is right up there. Highly underrated, it has a great plot (not necessarily original, but) and the action is well paced. It has that darkened 70's feel to it, which works very effectively. John Wayne made a mistake turning down the Dirty Harry bit, but he shows what might have been in this movie. McQ and Dirty Harry and Bullitt are all great movies. If you haven't seen all of them, then what are you waiting for?