One of the joys of “Star Wars,” which is really a sword-and-sorcery fantasy of the future, is that everyone plays by the rules, lives by the Force, and is true to himself. Boorman’s “Excalibur” is a record of the comings and goings of arbitrary, inconsistent, shadowy, figures who are not heroes but simply giants run amok. Still, it’s wonderful to look at. Roger Ebert