That’s because Kevin Costner’s British accent in Robin Hood: Prince Of Thieves miraculously finished above Van Dyke, scoring 2.0 out of 5.
The problem is that Kevin Costner doesn’t even attempt a British accent in Prince Of Thieves, instead he just speaks in his usual American droll.
But while Dick Van Dyke’s accent in Mary Poppins has been the butt of many a joke for decades now, I have to admit that I feel a little sorry for him that he finished bottom of this list.