This is a pretty good peplum film, based on the Theseus legend. It leaves out the ball of yarn gimmick that I recall from Bullfinch, alas; that made it a better story for me, showing Ariadne not only looked good in a short chiton, but had some brains.
Still, that's not what people watch swords-and-sandals flick for. The costume design is handsome, and there's some very nice photography under the supervision of Aldo Giordani, particularly the sequence with Theseus' rescue from drowning and Susanne Loret as Amphytrion. Bob Mathias plays Theseus and there's a bit with him throwing the discus. His principal claim to fame was winning Decathlon Gold at two Olympics, and he played himself in a cheap Allied Artist biopic, but his acting career was uninspiring.