The Awful Truth (1937)

Before their divorce becomes final, Jerry and Lucy Warriner both do their best to ruin each other's plans for remarriage, Jerry to haughty socialite Barbara Vance, she to oil-rich bumpkin Daniel Leeson. Among their strategies: Jerry's court-decreed visitation rights with Mr. Smith, their pet fox terrier, and Lucy doing her most flamboyant Dixie Belle Lee impersonation as Jerry's brassy "sister" before his prospective bride's scandalized family.