Born Lucille Fay LeSueur in San Antonio, Texas, the youngest and third child of Anna Bell (Johnson) and Thomas E. LeSueur, a laundry laborer. She was of English, French Huguenot, Swedish, and Irish ancestry. Crawford's elder siblings were sister Daisy LeSueur, who died before Lucille's birth, and brother Hal LeSueur. Crawford's father abandoned the family a few months before her birth, reappearing later in 1930 in Abilene, Texas, reportedly working as a construction laborer.

For $500,000, Crawford signed with Warner Brothers for a three-movie deal and was placed on the payroll on July 1, 1943. Her first film for the studio was Hollywood Canteen (1944), an all-star morale-booster film that teamed her with several other top movie stars at the time. Crawford said one of the main reasons she signed with Warner Brothers was because she wanted to play the character "Mattie" in a proposed 1944 film version of Edith Wharton's novel Ethan Frome (1911).  She wanted to play the title role in Mildred Pierce (1945), but Bette Davis was the studio's first choice. However, Davis turned the role down. Director Michael Curtiz did not want Crawford to play the part, and he instead lobbied for the casting of Barbara Stanwyck. Warner Bros went against Curtiz and cast Crawford in the film. Throughout the entire production of the movie, Curtiz criticized Crawford. He has been quoted as having told Jack L. Warner, "She comes over here with her high-hat airs and her goddamn shoulder pads... why should I waste my time directing a has-been?" Curtiz demanded Crawford prove her suitability by taking a screen test. She agreed. After the test, Curtiz agreed to Crawford's casting. Mildred Pierce was a resounding critical and commercial success. It epitomized the lush visual style and the hard-boiled film noir sensibility that defined Warner Bros. movies of the late forties, earning Crawford the Academy Award for Best Actress in a Leading Role.  The success of Mildred Pierce revived Crawford's movie career. For several years, she starred in what were called "a series of first-rate melodramas". Her next film was Humoresque (1946), co-starring John Garfield, a romantic drama about a love affair between an older woman and a younger man. She starred alongside Van Heflin in Possessed (1947), for which she received a second Academy Award nomination, although she did not win. In Daisy Kenyon (1947), she appeared opposite Dana Andrews and Henry Fonda, and in Flamingo Road (1949) her character has an ultimately deadly feud with a corrupt southern Sheriff played by Sydney Greenstreet. She made a cameo appearance in It's a Great Feeling (1949), poking fun at her own screen image. In 1950, she starred in the film noir, The Damned Don't Cry!, and starred in Harriet Craig.  After the completion of This Woman Is Dangerous (1952), a film Crawford called her "worst", she asked to be released from her Warner Brothers contract. By this time she felt Warners was losing interest in her and she decided it was time to move on. Later that same year, she received her third and final Academy Award nomination for Sudden Fear for RKO Radio Pictures. In 1953, she appeared in her final film for MGM, Torch Song. The movie received favorable reviews and moderate success at the box office.  Crawford adopted two more children in 1947, two girls she named Cindy and Cathy.

Did they agreed to released from the contract ?