Vivien Leigh friendship developed after he congratulated her on her performance. Olivier and Leigh began an affair while acting as lovers in "Fire Over England" (1937), but Olivier was still married to actress Jill Esmond. During this period, Leigh read the Margaret Mitchell novel "Gone with the Wind" and instructed her American agent to recommend her to David O. Selznick, who was planning a film version. She remarked to a journalist, "I've cast myself as Scarlett O'Hara", and "The Observer" film critic C. A. Lejeune recalled a conversation of the same period in which Leigh "stunned us all" with the assertion that
Gone with the Wind (film) Despite receiving top-billing in the opening credits, Gable—along with Leigh, Howard, and de Havilland who receive second, third, and fourth billing respectively—has a relatively low placing in the cast list, due to its unusual structure. Rather than ordered by conventional billing, the cast is broken down into three sections: the Tara plantation, Twelve Oaks, and Atlanta. The cast's names are ordered according to the social rank of the characters; therefore Thomas Mitchell, who plays Gerald O'Hara, leads the cast list as the head of the O'Hara family, while Barbara O'Neil as his wife receives the second credit and Vivien Leigh