IF YOU FIND YOURSELF yearning for a bit of real magic after sitting through Revenge of the Sith, George Lucas’s computer-generated confection, you should keep an eye on your local theater for Deep Blue.

A documentary directed by Andy Byatt and the wonderfully named Alastair Fothergill for the BBC, Deep Blue is only now seeping out into release in the United States. Showings begin in major cities in the coming weeks and, if the movie proves successful, Miramax will no doubt book it out into the hinterlands. If you should be lucky enough to have Deep Blue showing in your neck of the woods, you’d be a fool to miss it.