BEVERLY HILLS, Calif. - Actor Glenn Ford, who played strong, thoughtful protagonists in films such as "The Blackboard Jungle," "Gilda" and "The Big Heat," died Wednesday, police said. He was 90. Ford appeared in scores of films during his 53-year Hollywood career. The Film Encyclopedia, a reference book, lists 85 films from 1939 to 1991. He was cast usually as the handsome tough, but his acting talents ranged from romance to comedy. His more famous credits include "Superman," "Gilda," "The Sheepman," "The Gazebo," "Pocketful of Miracles" and "Don't Go Near the Water."