It is hardly a couple of months since Martin Lawrence last, ahem, delighted us in his knockabout comedy with Danny DeVito: What's the Worst That Could Happen? Now he plays the slacker employee of a cheesy Olde Mediaeval Style Theme Park who accidentally gets sent back through time for adventures in the 14th century - gamely assisted by our own Tom Wilkinson as a wacky nobleman called Sir Knolte. As ever, the humour consists very largely of the big, gurning comedy faces Lawrence does right up close to the lens, often smelling something absolutely disgusting and going: "D-a-a-a-y-u-m!" It is very much not to be compared with A Connecticut Yankee in King Arthur's Court.

Yet I admit it. I expected this to be dire; and quite often it was dire, yet just as often I found myself giggling. However crude Lawrence gets, he has energy and presence, and there's often something weirdly inventive going on, with some not unsuccessful tributes to the world of Monty Python and the Holy Grail. I particularly liked the Queen's inspirational speech to her people, which turns out to be a sub-Branagh-at-Agincourt shrieking of the word "England". A (very) guilty pleasure.