True Grit

True Grit is a movie starring John Wayne, Kim Darby, and Glen Campbell. A drunken, hard-nosed U.S. Marshal and a Texas Ranger help a stubborn teenager track down her father's murderer in Indian Territory.
The murder of her father sends a teenage tomboy on a mission of 'justice', which involves avenging her father's death. She recruits a tough old marshal, 'Rooster' Cogburn because he has 'true grit', and a reputation of getting the job done.