Lang was married to Madalynne Field (1907–1974) from 1937 until his death. Field, a former Actress, had met and befriended Carole Lombard when they were employed as Sennett Bathing Beauties in the late 1920s. Field's film career ended with the demise of Sennett's studio. However, she maintained her friendship with Lombard, and acted as Lombard's secretary until her marriage. She met Lang when he directed Lombard in Love Before Breakfast (1936). Lang was buried in the Inglewood Park Cemetery, in Inglewood, California.