Original Australian One Sheet Movie poster.Rooster Cogburn is a 1975 American Western Technicolor film directed by Stuart Millar and starring John Wayne, reprising his role as U.S. Marshal Reuben J. "Rooster" Cogburn, and Katharine Hepburn. Written byMartha Hyer, based on the Rooster Cogburn character created by Charles Portis in the novel True Grit, the film is about an aging lawman whose badge was recently suspended for a string of routine arrests that ended in bloodshed. To earn back his badge, he is tasked with bringing down a ring of bank robbers that has hijacked a wagon shipment of nitroglycerin. He is helped by a spinster searching for her father's killer. Rooster Cogburn is a sequel to the 1969 film True Grit.