City Girl is a 1930 American part-talkie sound film directed by F. W. Murnau, and starring Charles Farrell and Mary Duncan. It is based upon the play "The Mud Turtle" by Elliot Lester. Though shot as a silent feature, the film was refitted with some sound elements and released in 1930 as a sound film due to the public apathy to silent films. While the film a few talking sequences, the majority of the film featured a synchronized musical score with sound effects using both the sound-on-disc and sound-on-film process. The film is credited as being the primary inspiration for Terrence Malick's film Days of Heaven (1978).