Christopher Plummer, br Award-Winning Actor, Dead at 91.br According to Plummer's br wife, the Canadian-born br actor succumbed to a head br injury caused by a recent fall.br Plummer's career spanned br more than seven decades. .br He is perhaps best known for playingbr character Georg von Trapp in 'The Sound of Music.'.br He famously referred to the film as br "The Sound of Mucus," saying that the br legacy of it followed him "around like an albatross.”.br Plummer was also known as one of the world's br most distinguished Shakespearean actors, br having performed many of the Bard's major roles. .br He also gained fame in highly-commercial films, br such as 'Star Trek VI: The Undiscovered Country.'.