Time may not have been kind to the history-hopping DeLorean's coolness quotient, but it's done wonders for the rest of the Back To The Future trilogy.

Okay, so the first chapter now whiffs of shallow '80s materialism, but the slick execution and ingeniousness of the central concept - time-travelling boy meets girl, who turns out to be his mum, thereby endangering his own existence - ensure it classic status.

Part Two is marginally inferior but remains a delirious head-shaft, recreating and subverting most of the events of the first movie. Meanwhile, the exuberant last instalment still benefits from shifting the focus to Doc Brown (Christopher Lloyd), while winking repeatedly in the direction of classic Westerns of yesteryear.

DVD Extras:

It's taken a long time to bring this trilogy to DVD, but if you thought it was because they were working on some sexy extras, you'd be sadly wrong. There's no fourth 'bonus' disc here, and only the first movie comes with a commentary. Parts I andII have cheesy, dated Making Of featurettes, while all three discs have so-so outtakes, a few deleted scenes and a Making The Trilogy featurette divided among them.There is some juice in here, though. Zemeckis and Gale recount how Disney rejected the first film's script because of its 'incestuous' plot, and how they wrote Crispin Glover out of the sequel because of his escalating demands. But, compared with the likes of the Alien Legacy box set, the BTTF discs are unhappily slapdash.