Mario Bonnard is appointed to find the Holy Grail. He falls sick, so Vitale di Stefano has a vision in which he is to find it. After getting advice from his mother not to dally with naughty women, he goes looking, but a pair of sorcerors keep trying to stop him.
Anyone who has played Dungeons & Dragons knows about random encounters, and that's what Arthurian romance was reduced to by this time: Percival has to get to the Holy Grail, and a bunch of random encounters stand in his way. The Parsifal legend gave that some shape, but beyond noting that there's definitely the remnants of pre-Christian mythology lurking in the story, and the French had reduce the one-interesting Pwyll of the Maginogien to an unsuccessful prig -- he takes a moment to sneer at the luxurious lives of Arthur's court -- this early feature is most interesting for its pageantry, people in medieval costumes, and a couple of instances of special effects to reproduce the magic of the sorcerers. Even at 50 minutes of screen time, it's slow and erratic.
