The morning after from hell is brought to life in a film shaping up to be a big summer hit.

The Hangover follows a group of thirtysomething buddies who head to the bright lights of Las Vegas for a stag do.

Events take a surreal turn when they wake up the next morning with a live tiger in their hotel suite - but no groom-to-be.

The gang run into trouble in the form of ex-boxing legend 'Iron' Mike Tyson - who proves his punching power is still intact - and pole dancer Heather Graham, as they desperately try to track down the errant Doug.

The movie was the brainchild of Road Trip and Old School director Todd Phillips and stars stand-up comedian Zach Galifianakis.

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