Answer
True Grit is a 1969 Western film directed by Henry Hathaway and starring John Wayne, Glen Campbell, Robert Duvall, Kim Darby, and Dennis Hopper. Campbell played the supporting role of La Boeuf, a Texas Ranger who helps Wayne's character, Rooster Cogburn, track down the outlaw Tom Chaney. The film was a critical and commercial success, and Campbell was nominated for an Academy Award for Best Supporting Actor.