HERCULES VS. THE HYDRA definitely ranks in the top 5 of the hundreds of Hercules films made in Italy in the 1960's (the others being HERCULES IN THE HAUNTED WORLD; the original Steve Reeves HERCULES; THE FURY OF HERCULES; the delirious THE WITCH'S CURSE; and the equally gonzo HERCULES PRISONER OF EVIL.) But back to HYDRA -- first, you've got Jayne Mansfield and Mickey Hargitay, and the fact that they eventually married, and that Mansfield died tragically, lends an undeniable poignancy to this movie. There's no way around it, it's part of Hollywood history, and it makes this a very melancholy portrait of two people falling in love. Second, there's Hargitay -- and dammit, he's a REALLY GOOD Hercules, possibly the best on a pure acting level (and Hargitay wasn't really an actor, so that's saying something.) He's dubbed (of course), but there's a real emotional yearning quality that comes across here, and he puts his heart and soul into almost every scene. Watch a bunch of the other Hercules actors and you'll see what I mean. Best of all, the movie veers off into delirious Alexander Ptushko territory about halfway through, when Herc encounters the three-headed Hydra in the land of the Amazons. Anyone who loves Ray Harryhausen type fantasy films will get a kick out of this one. The weird-ass forest of human trees is especially good. Definitely a winner.