"I began to direct my own films in 1970. At that time the only means I had to be able to direct was to act in the films . . . . It was a practical question at the time. Afterwards, I grew to like it." As a star, Clint Eastwood is recalled primarily for two early roles--the "Man With No Name" of three European-made Westerns and "Dirty" Harry Callahan, the uncompromising cop who spoke softly and carried a big gun in five movies. But like few other stars,...