In films from 1942, model and cover girl Martha Vickers acted under her given name of MacVicar in her earliest screen assignments. She wasn't "Vickers" until her breakthrough film The Big Sleep (1946), in which she was cast as Carmen Sternwood, Lauren Bacalls debauched, thumb-sucking younger sister. The most famous of Vickers' three husbands was Mickey Rooney, to whom she was wed from 1949 to 1951; husband number two was publicist/producer A. C. Lyles Jr., while number three was polo player Manuel Rojas. Martha Vickers retired from films after appearing in Four Fast Guns (1960). ~ Hal Erickson, All Movie Guide