Granted, the gentle lilt of an Irish accent makes it one of the most difficult to perfect. Even the most experienced of thespians have been known to slide from one Celtic drawl into another from time-to-time. Kevin Spacey, for example, is not usually a man we'd hold accountable for crimes against cinema - especially when he has a penchant for impressions. And one of the worst Irish accents ever committed to the silver screen came out of the mouth of an actual Irishman (scroll down for details). (www.independent.co.uk)