Prison Farm(1938)

Shirley Ross plays an innocent young girl convicted for complicity in a crime committed by her boy friend (Lloyd Nolan). The male crook is sentence to six months on a prison farm populated by both men and women (segregated, of course). Ross is also incarcerated, suffering the cruelties of the sadistic male and female guards (including J. Carroll Naish and future "Ma Kettle" Marjorie Main!)