search a movie from the 80ies with specific but few details

The plot involves a young, lonesome protagonist, bare-chested, crossing a desert-like landscape. He is wearing a medieval bucket helmet (like the crusaders wore) but no further armour. he may fight enemies, but no memory about them or any weapons used. He does encounter some (a group of?) women. At one point, he passes a large ruin, castle or similarly desolate architectural structure. (The woman who had chosen the movie was a fan of Pasolini)