Samuel Alexander O'Steen was an American film editor and director. He had an extended, notable collaboration with the director Mike Nichols, with whom he edited 12 films between 1966 and 1994. Among the films O'Steen edited are Who's Afraid of Virginia Woolf, Cool Hand Luke, The Graduate, Rosemary's Baby, and Chinatown.

Who's Afraid of Virginia Woolf? is a 1966 American drama film directed by Mike Nichols in his directorial debut. The screenplay by Ernest Lehman is an adaptation of Edward Albee's 1962 play of the same name. It stars Elizabeth Taylor as Martha, Richard Burton as George, George Segal as Nick, and Sandy Dennis as Honey. The film depicts a late-night gathering at the home of a college professor and his wife.