As is often the case with the science-fiction fable, a fascinating but utterly fantastic tale is rendered somewhat credible by slight touches of satire on present-day civilization, which relates unfeasible facts to our smug complacency. This 14th century tale of the temporary invasion of England by super-civilized creatures of outer space and the ensuing subjugation of the constellations by a handful of British knights is worth a couple of hours of other worldly enjoyment.