The Daily Telegraph was fairly positive noting that "if the set-up led you to expect a neat, liberal parable of the oppressed versus The Man, then you’d have been wrong. Last night’s drama proved far more complicated and interesting than that."
There's nothing in The Independent, but the other two broadsheets seem less impressed. The Guardian Preview article was fairly positive
Woolcock's production doesn't always work, but it's nevertheless compelling. It's also quite beautiful, with even a dilapidated fairground possessing a grim splendour. And like the most powerful speculative fiction ...it's all about here and now....but the final review took the opposite position:
It was clearly a well-intentioned production, but desperately uninvolving. Perhaps because of the limitations of the non-professional parts of the cast...You would need a classful of infant Oliviers to give lines like "My mummy cried every day, then she stuck needles in her arm" any pathos. As it was, you needed, as the man said, a heart of stone not to laugh.Likewise The Times said "good on the 600 Margate residents who had a whale of a time making community theatre this summer. But bad luck on us that it was filmed and filled two long hours on Channel 4 last night".
There's also a Channel 4 microsite for the film which includes a photo gallery and some further information.