Being married to James Cameron was a titanically miserable experience. So says actress Linda Hamilton, who filed for divorce from the director of “Titanic” and “The Terminator” after nearly eight years of marriage. “I wanted to be the one to do the final destructive act. It’s an important thing for me personally not to feel like the victim,” Hamilton told USA Today. Hamilton said that even at last year’s Academy Awards — when Cameron’s “Titanic” won 11 trophies and he shouted, “I’m the king of the world!” — he was still “an absolutely miserable, miserable, unhappy man.” She said the two have nothing in common except their 6-year-old daughter.