It's not quite Some Like It Hot but this gender-swapping yarn starring Shawn and Marlon Wayans boasts more comedy hits than misses.

They play calamity-prone FBI agents Marcus and Kevin Copeland who are given the job of escorting two brattish rich girls from the airport to a swank do in The Hamptons.

However, sisters Britanny and Tiffany Wilson decide they can't show themselves in reality-lite society after suffering a fat lip and scratched nose in a minor car prang.

Marcus and Kevin are left with no choice but to cross the great divide between their black blue collar worlds and the girls' white diamond necklace existence.

Drafting in an FBI expert of disguise, they transform themselves into the airhead sisters, complete with blonde tresses, crop-tops and valley attitude.

Overnight they've got to master a vocabulary where every sentence is punctuated with 'whatever' and a life where they're constantly on the verge of a BF (bitch fit).

Arriving upstage their first obstacle is convincing friends of the Wilson sisters they are who they say they are. "You look taller...Ohmigod, you've had your knees done!"

Next hurdle is a face-off with the Wilson brats' double nemesis Heather and Megan Vandergeld (Jaime King, Brittany Daniel), who are hosting the charity celeb-a-thon.

But things get really tricky as a hot-blooded football star gets alls steamy for Marcus in his cross-dressing guise and Kevin courts a sexy TV reporter ("investigative journalism is my passion.)"

This passes the time amiably enough but you can't help thinking the comedy talents of the Wayans could do with a stiffer challenge.

There's sharp mockery of Valley Speak - "trying to pull a Winona" is a euphemism for going on the shoplifting spree - while the Wayans terrify as women - think plastic surgery princess Jocelyne Wildenstein...plus her twin.

However, a few tired old setpieces are wheeled out - there's a "pooch-in-peril (cf Soul Plane) and the almost obligatory toilet routine (cf almost any Adam Sandler film).

Sad to note, that no matter how well this is received it'll never reach the levels of celebrity that real-life superbrat Paris Hilton reached with her own film exploits.

Tim Evans