Giants Of Thessaly (1960)

aka: I Giganti Della Tessaglia

In order to placate the angry gods, who have allowed Thessaly to be overrun with barbarian invaders and beset with natural disasters, King Jason (Roland Carey) takes his Argonauts on a search for the fabled Golden Fleece. Meanwhile, back at home, his scheming regent is plotting to get his hands on the kingdom-and the queen. Also stars Ziva Rodann and Alberto Farnese.

Comes from an Italian widescreen import print of excellent picture quality.