Chatterbox (1943)

While shooting a western on location, a Hollywood "cowboy" star--whose offscreen image is exactly the opposite of his onscreen one--is saved from disaster by a gregarious local girl. She winds up becoming not only his leading lady in the movie but, because of a set of nutty offscreen circumstances, his fiancé in real life.

Directed by: Joseph Santley

Starring: Joe E. Brown, Judy Canova, Rosemary Lane, John Hubbard, Gus Schilling, Chester Clute

Links: IMDb, Movie posters, Movie stills