While I'm a really big fan of the original series, "Gunn" is a disappointment. Style and memorable characters was the series strong suit, and you have one real standout here. J. Pat O'Mally is perfect as Peter Gunn's chief informant. However, even the usually banal plotting of Peter Gunn is surpassed by this weak script, which leaves too much background of the villain off-camera. It's left to Peter Gunn to explain much of the plot in the closing scenes. While beautiful and even more spectacularly put together than the original Edie (Lola Albright), Laura Devon is too young and has to little to do to make the needed impression as Gunn's main squeeze. Ed Asner suffers in comparison to Hershel Bernardi, as Lt. Jacoby, and his relationship with Gunn is far more antagonistic than that portrayed in the series. The harsh photography is not kind to Craig Stevens. Further, Sherry Jackson's character is poorly written and provides a demeaning stereotype as a "mystery woman," whose real identity should be no mystery to fans of bad mysteries. Further, Jackson's fate is ludicrous in retrospect, given her actions during the climax. Still, bad "Peter Gunn" is better than no "Peter Gunn" at all, and it is a shame this movie failed at the box office.
A later Peter Gunn remake with Peter Strauss only reminds us how great Craig Stevens was in the role. Too bad Blake Edwards was unable to try again while Stevens was still young enough to play the part.
It's also a shame the 1967 PLAYBOY pictorial didn't include any revealing shots of Devon or of Carol Wayne, who has a cameo. Jackson is really good eye candy, but Wayne and Devon would have made a sublime pictorial.
Watch "Gunn" for the music and the memories, as that's about all you get.