"With great power comes great responsibility". That was the immortal line from veteran actor Cliff Robertson, who plays Peter Parker's (Tobey Maguire) doomed Uncle Ben in 2002's SPIDER-MAN. The versatile actor of stage, television and movies who also won an Oscar for Best Actor as a mentally disabled man in 1968's CHARLY, has died of natural causes at Stony Brook University Medical Center on Long Island, according to his longtime personal secretary Evelyn Christel.