It benefits from some fun performances from Robert Shaw and Edward Fox and a kind of retro feel to it that makes it seem like a film that could have been made twenty years earlier.
This was a sort of good movie - ironically it would do better if we didn't think it had anything to do with the original "Navarone". What otherwise kills the flick is that there's no central villain - Richard Kiel plays a monstrous Chetnick who baits Carl Wethers and the rest of us, but that's about all. There's a high-ranking Nazi who puts in an early appearance and an almost as fast exit. The biggest disappointment is the plot - save the partisans. The partisan commander's antipathy to his Anglo-American allies stems from his suspicion that they consider his war theater a backwater, an idea the script does little to contradict. Still, the flick is definitely worth a look - I actually enjoyed it, especially how it tries to look and sound like a war movie made a decade earlier, rousing music and all.