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Although Rand had some mainstream success previously with her play "Night of January 16th" and had two previously published novels, "The Fountainhead" was a major breakthrough in her career. It brought her lasting fame and financial success. She sold the movie rights to "The Fountainhead" and returned to Hollywood to write the screenplay for the adaptation. In April 1944, she signed a multiyear contract with movie producer Hal Wallis to write original screenplays and adaptations of other writers' works.