Following Broadway Serenade, and not coincidentally right after Nelson Eddy's surprise elopement with Ann Franklin, MacDonald left Hollywood on a concert tour and refused to renew her MGM contract. Months later she summoned her manager Bob Ritchie from London to help her renegotiate. After initially insisting that she wanted to film Smilin' Through with James Stewart and Robert Taylor, MacDonald finally relented and agreed to film New Moon (1940) with Eddy, which proved to be one of MacDonald's more popular films. Composer Sigmund Romberg's 1927 Broadway hit provided the plot and the songs: "Lover, Come Back to Me," "One Kiss," and "Wanting You," plus Eddy's version of "Stout Hearted Men." This was followed by Bitter Sweet (1940), a Technicolor film version of Noël Coward's 1929 stage operetta, which Coward loathed, writing in his diary about how "vulgar" he found it. Smilin' Through (1941) was MacDonald's next Technicolor project, the third adaptation filmed in Hollywood, with Brian Aherne and Gene Raymond. Its theme of reunion with deceased loved ones was enormously popular after the devastation of World War I, and MGM reasoned that it should resonate with audiences during World War II, but it failed to make a profit. MacDonald played a dual role—Moonyean, a Victorian girl accidentally murdered by a jealous lover, and Kathleen, her niece, who falls in love with the son of the murderer.
