That old comedy staple - the case of mistaken identity - is wheeled out and given a dusting down in this affable comedy.

Dental supplies salesman Andy Fiddler (Levy) has left his devoted wife and happy kids back in Wisconsin to attend a sales conference in down'n'dirty Detroit.

Sipping a coffee across the road from his hotel, he's mistaken for an arms dealer in town to clinch a deal to buy a stolen cache of arms from ruthless gunrunner Joey (Goss).

It turns out that hardcore undercover cop Derrick Vann (Jackson) should have been sat in Andy's seat…so the denture specialist is strong-armed into continuing the pretence.

It doesn't help that he's on Interpol's wanted list after he unwittingly bought a stolen carpet while on holiday in Istanbul and a warrant is out from the Turkish police.

But the information convinces Joey's gang that he's the real deal after they run a check on him - and "The Turk" is now regarded as a player in the bidding war for the guns.

The script could have been written by a computer - but what would have been a thoroughly ordinary affair is lifted by actors the calibre of Levy and Jackson.

Funniest moments hinge on the juxtaposition of Vann (hardbitten, sweary, cynical cop) and Andy (genial, trusting, over-chatty) and their culture clash as they are forced to get along.

Highlights include Vann being forced to admit to disbelieving mobsters that he's Andy's "bitch" and the dentist's unwelcome attempt to cure him of his four-letter-word habit.

It's about as cutting edge as Andy's checked sports jackets but then decent comedy never goes out of fashion.

Tim Evans