Front Page Woman (1935)

Reporter Curt Devlin loves sob sister Ellen Garfield but believes women are "bum newspapermen". When she learns the identity of a murdered arsonist, he calls it luck. When she goes after the murderer he gets enough evidence to have Maitland Coulter arrested. She finds a bunch of "not guilty" ballots and publishes the wrong story; he eavesdrops on the jury and gets the correct verdict. After being fired she gets a confession from the real killer and gets Coulter released.