Ercole alla conquista di Atlantide (1961)

The ever intrepid world-trotting hunk of a man Herc (Hercules to those who are not his friends) saves a beautiful maiden from the hands of an evil creature. She takes him to her home, Atlantis. Herc kicks some butt and saves her from her mother who wants to kill her and from some scary looking blond guys but unfortunately the rest of the inhabitants are destroyed. Do not worry because Herc escapes along with his son, the maiden and an annoying midget.