A lanky, quietly intense, classically-trained actor, Sam Waterston entered film in the mid-1960s, most typically cast as pensive dreamers and intelligent yet essentially ordinary middle-class types. He languished in several forgettable features while piling up impressive credits on the New York stage until he scored as Tom in a fine TV adaptation of Tennessee Williams' "The Glass Menagerie" (ABC, 1973), opposite Katharine Hepburn. Waterston garnered further attention and acclaim, and made his most significant inroads into features up until that time, as Nick Carraway in the glossy but