He continued to write for film .
He had his biggest late successes with stage musicals : Perchance to Dream ( 1945 ) , King 's Rhapsody ( 1949 ) and Gay 's the Word ( 1951 ) .
He continued to write for film , but he had his biggest late successes with stage musicals : Perchance to Dream ( 1945 ) , King 's Rhapsody ( 1949 ) and Gay 's the Word ( 1951 ) .