DVD: Exit Through the Gift Shop, For retail & rental (Revolver)

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Ostensibly a making-of documentary about clothing store owner Thierry Guetta's film about the rise of street art, culminating in his friendship with the graffiti artist Banksy, this has more levels than a multi-storey car park.

Is it, in fact, Guetta's film at all? Is his backstory, complete with dead mother, rather sad – or entirely fabricated? Has the whole thing been set up by Banksy as a poke at the contemporary-art scene? The only thing certain is that it's infinitely entertaining.