Bruce Willis demanded that bar staff go on a late night hunt for root beer so he could enjoy his favourite drink at a New York nightclub. The 'Die Hard' star - rumoured to be dating Renee Zellweger - ordered root beer and bourbon from hip nightspot Cielo and was furious when he was told they didn't serve it. A source told BANG Showbiz: 'We have hardly ever had anyone order root beer here but Bruce Willis had us running round the block to a deli in the middle of the night to buy some so he could have a root beer and bourbon cocktail.' Bruce was recently seen enjoying a cosy meal with 'Bridget Jones' star Renée Zellweger at Los Angeles restaurant Cut. A source said: 'They seemed really into each other. Renée definitely left with Bruce.' (C)