Here's an idea: why not round up a few British TV comedians for a spoof documentary about three couples who line themselves up for ridicule in a magazine's zany 'wedding of the year' competition?

There's loads of scope for satire because people will do anything for fame and/or a £500,000 prize these days. And if the stars improvise most of their lines, it'll make the comedy much more fresh and funky, right?

As a movie, Debbie Isitt's sketchy concept appears to be just that: 15 minutes of fun stretched to feature length.

She and the cast of Confetti try to emulate - without ever coming close to matching - what Christopher Guest and his superb American ensembles achieved with Best In Show and A Mighty Wind.

Nobody here looks very comfortable with improvisation, resorting to shouting, shoving and mugging furiously whenever they can't think of anything amusing to say. Nor do their characters break free from stereotype.

The brains behind Confetti's big day are the magazine's prissy owner (the ever-punchable Jimmy Carr) and harried editor (Felicity Montagu), while a pair of gay (what else?) wedding planners tediously flap around trying to put it all together.

The Office's Martin Freeman and Jessica Stevenson of Spaced play a down-to-earth couple desperate to move away from her mum (Alison Steadman). An interfering mother-in-law. How original.

Stephen Mangan (Green Wing) is a self-pitying tennis freak whose over-competitive Canadian fiancee (Meredith MacNeill) has a close attachment to - you guessed it - their smarmy Spanish coach.

And, providing yet more obvious laughs by way of boobs, willies and bums, Peep Show's Robert Webb lets it all hang out as an uninhibited naturist while his intended (Olivia Coleman) simply looks forlorn.

Hers is an underlying glumness which lurks behind all the chintzy cheeriness. It made me want to divorce myself from proceedings long before the toe-curler of a finale.

Elliott Noble