If you don't particularly like John Wayne, then I doubt if this film will change your opinion. But, if you do like his films and want to watch some mindless action, it's not a bad bet at all--though the film is awfully derivative. That's because only a short time before this, the Dirty Harry films debuted and were VERY successful. John Wayne must have been really ticked, as he was first offered the part as Inspector Callahan ("Dirty Harry"). McQ is his attempt to cash in on the genre, though the results were definitely very mixed.
First, let's talk about the bad. The overall tone of the film is pretty dark and depressing. A plot involving stolen drugs and dirty cops was a far cry from the usual John Wayne fare. Plus I was pretty shocked when this newer and "hipper" Wayne gave drugs to Colleen Dewhurst to elicit her assistance AND THEN he slept with her! This just seemed rather gross. Occasionally, the Duke's reasoning abilities seemed a bit "super-human"--such as how did he know what he knew when the film was about to end??!! Also, unlike Dirty Harry and Wayne's next film (BRANNIGAN), there are no great lines from the film such as "you feelin' lucky, punk". Also, the story itself is just okay.
As for the good, there are some wonderful action scenes--ones that a 60-something Wayne couldn't have really done if his life had depended on it! And the final confrontation was really exciting and about what you'd hope for in the film.
By the way, while I only see this as a slightly better than average time-passer, his next film, BRANNIGAN, is a much better film. While not exactly a sequel, he plays a very similar role but the writing, locale and acting is just a whole lot better--and aside from THE SHOOTIST, is probably the best film of the final decade of Wayne's career.
