Bruce Willis shocked partying crowds by screaming, "I have abandoned my son", in a trendy New York bar during a night out, it was claimed today. Onlookers said the Die Hard star, partying with his exotic girlfriend, turned heads with the outburst. A line which is from the Daniel Day-Lewis starring and Oscar-winning movie There Will Be Blood. An onlooker told a US newspaper: "Bruce was very merry and all of a sudden shouted at the top of his lungs, 'I've abandoned my son!' four times in a row. It definitely made the room stop and stare." Bruce, 52, who has three daughters with ex-wife Demi Moore, then chatted up a couple by the bar and did shots with the bartender before leaving Manhattan hotspot Freeman's on Monday night, it was reported. Pictures by Splash News / Demis Maryannakis