the stepson of Mary Pickford, who were considered Hollywood royalty. Fairbanks Sr. and Pickford were opposed to the marriage, and did not invite the couple to their home at Pickfair for eight months after the marriage. The relationship between Crawford and Fairbanks, Sr., eventually warmed; she called him Uncle Doug, and he called her Billie, her childhood nickname, but one that close friends used throughout her life. She and Pickford, however, continued to despise each other. Following that first invitation, Crawford and Fairbanks, Jr., became more frequent guests. While the Fairbanks men played golf together, Crawford was either left with Pickford, who would retire to her quarters, or simply left alone. To rid herself of her Southwestern accent, Crawford tirelessly practiced diction and elocution. She said: Transition to sound, and continued success After the release of The Jazz Singer in 1927—the first feature-length film with some audible dialogue—sound films became all the rage. The transition from silent to sound caused panic for many, if not all, involved with the film industry; many silent film stars found themselves unemployable because of their undesirable voices and hard-to-understand accents, or simply because of their refusal to make the transition to talkies. Many studios and stars avoided making the transition as long as possible, especially MGM, which was the last of the major studios to switch over to sound. The Hollywood Revue of 1929 was one of the studio's first all-talking films, and their first attempt to showcase their stars' ability to make the transition from silent to sound. Crawford was among the dozen or more MGM stars included in the movie; she sang the song "Got a Feeling for You" during the film's first act. She studied singing with Estelle Liebling, the voice teacher of Beverly Sills, in the 1920s and 1930s. Crawford made a successful transition to talkies with her first starring role in the all-talking feature-length film Untamed (1929), co-starring Robert Montgomery. Despite the success of the film at the box office, it received mixed reviews from critics, who noted that while Crawford seemed nervous at making the transition to sound, she had become one of the most popular actresses in the world. Montana Moon (1930), an uneasy mix of Western clichés and music, teamed her with John Mack Brown and Ricardo Cortez. Although the film had problems with censors, it was a major success at the time of its release.