Bare Knees (1928)
A young married woman in a small town is visited by her sister, a single "flapper" who causes a scandal in town with her bobbed hair and short skirts. She attracts the attentions of some of the local men, which causes an even greater scandal--which is made worse when her sister abruptly leaves her boorish husband for another man.
Directed by: Erle C. Kenton
Starring: Virginia Lee Corbin, Donald Keith, Jane Winton, Johnnie Walker, Forrest Stanley, Maude Fulton
Links: IMDb, Movie posters, Movie stills