However, the colour 'book-ends' are more than a mere exercise in nostalgia. The return poignantly emphasizes the very themes of the original film. Only six of the island's original inhabitants remain, their existence as threat­ened by economic deprivation and hardship (electricity had not come to the island as late as 1978) as it was 40 years ago. The island — remote, forbidding and mystical — is captured in dizzying aerial sequences. Although it took Powell only 20 minutes to arrive by plane on this occasion, we are not allowed to forget that it once took six hours by boat. This island, viewed from the comfort of a cinema seat, is as close to the edge of the world as one might ever hope to venture.