It's film review time. You know what to do if you haven't seen it yet and don't want to know.

This time it's Super Size Me

Inspired by the legal action taken against McDonalds by two overly obese teenagers, Morgan Spurlock plans an experiment in which he will eat nothing butMcD's for a month.

The multiple and wide-ranging medical exams he takes before hestarts put himin above-average fitness.

The rules of the experiment include having to accept the super-size option if offered, which he is on his second day. It takes him an hour to eat it and the results are, well, splashy. Even after this, his enthusiasm isn't dulled, but he's already feeling the effects, which aren't relegated to the expected bloatedness of eating so much grease. A walk up the stairs exhausts him, he begins having mood swings and he begins taking a cab for the less-than-half-mile journey to work.

His vegan chef girlfriend is nonplussed, his GP, dietician, psychologist and personal trainer (all employed for the experiment, Spurlock seems to be quite a regular guy) are already worried afterjust seven days.

Things do not get better, and by the endof the monthhe's a physical wreck on his way to an early death.

The experiment is only half the story however. During the month he investigates the evidence given in the legal cases. Interviewing the lawyer doesn't go too well,as his sanguine money-chasing attitude guarantees he gets only two minutes screentime. The attitude of the food industry executives are far more telling, as they unconvincingly try to defend the fast food sellers. You have to wait until almost the end to hear the most revealing statement. Only six words, but they cost the guy his job. A true jawdropping moment.

This is a fascinating film. I'd been putting off watching it but as it turns out, it's one of the better choices I've made in my little challenge to watch the latest releases in order to see if Hollywood really is churning out mostly crap. Let's put it this way, I want the DVD.

Now it has to be said that I'm naturally predisposed to apportion blame for most things at McDonalds feet, having followed their more underhand practises, via the underground press and the brave admissions of their employees, for the last 17 years. However, no effort is needed in order to dislike McD's during this film.

McD's have a certain line they follow consistently: The food is not intended to be eaten exclusively but is not harmful. By the end of the month, Spurlock reveals that he's eaten as much in 30 days as would normally be eaten in eight years. Now this is fair enough. You immediately think, well, that's OK I can't have eaten that much, so I won't turn out like that. But then think again. After one week, he would have eaten two year's worth and still was doing untold damageto his body. And most of us have eaten two year's worth.

All in all, a must-watch. As soon as the DVD comes out, my kids will be sat down to watch it. This will do more for your weightloss program than any exercise tape.