Helen Mirren. (Photo by Venturelli/Getty Images) Dame Helen Mirren made a blunder on a U.K. TV show “Good Morning Britain” on Tuesday by swearing during the live broadcast. The actress was telling the hosts about her love of camping and recalled a trip she went on in England with her actor ex-boyfriend Liam Neeson, who she dated in the 1980s, but slipped up when describing the weather. She said, “We went camping in Cornwall, he loved camping as well and we had this little deux chevaux car and Liam is 6ft 4in… and his head was sticking out the top of the car really and we had our tent in