In the survey carried out by film memorabilia website http://www.AsWornIn.com, Lambert's attempts to mimic the Caledonian brogue as an immortal swordsman in the 1986 hit movie won the disapproval of 42 per cent of the 1700 Scots quizzed. His defiant cries of "You can take our land - but you'll never take our freedom" led 27 per cent to brand his Scots accent the worst ever to grace the silver screen.
Gibson's performance as the hammer of the English in the 1995 movie Braveheart brought him worldwide acclaim. Robin Williams's appearance as a cross-dressing nanny in Mrs Doubtfire came in third place, with 16 per cent of respondents unconvinced by his attempts to change the way he speaks. Others who got a mention include Jessica Lange as Mary MacGregor in Rob Roy, Michael Caine as Alan Beck in Kidnapped, Alec Guinness in Tunes of Glory; and Mike Myers in Shrek.
"An American audience is typically unaware of just how wide of the mark many of these attempts at Scottish accents are," The Daily Telegraph quoted Jeremy Angel, director of AsWornIn.com, as saying. "It seemed entirely logical to ask the Scots how they rate these half-baked attempts to imitate their accent," Angel said.