!!1969 version
* AFIS100Years100HeroesAndVillains:
** #36 Hero, Rooster Cogburn
* CaliforniaDoubling: The story takes place in the [[DeepSouth Ozarks]], but the landscape in the movie doesn't look like the Ozarks. In fact, it was shot in Colorado and California. The contrast between the tall granite snow covered peaks of the Rockies and High Sierras, and the actual weathered hills of the Ouachita, Boston, and Arbuckle mountains of Oklahoma and Arkansas is so extreme, this veers into TheMountainsOfIllinois territory. No, you can't actually go skiing in Oklahoma.
* CreatorBacklash:
** Henry Hathaway later said he hated Music/GlenCampbell's performance, which he described as wooden, and claimed the singer was only cast so he could have a hit with the theme song which would help promote the film.
** Creator/JohnWayne was not pleased with the finished film. He greatly disliked Kim Darby's performance, and while promoting the film for its U.S. release in June 1969, he told interviewers that he had starred in much better films, citing ''Film/{{Stagecoach}}'' as an example. Hathaway also felt she was wrong for the part.
* DawsonCasting:
** Mattie was about fourteen in the book and prepubescent. Kim Darby was well into her twenties.
** Rooster Cogburn is forty in the book. Creator/JohnWayne was 61 at the time.
* HostilityOnTheSet: Creator/JohnWayne didn't have a pleasant time on the film.
** He disliked Kim Darby's performance and the two hardly spoke off-camera.
** He was so annoyed by Robert Duvall's MethodActing approach that he threatened to punch him if he questioned the director one more time.
** Creator/DennisHopper claimed that Wayne chased him round the studio with a loaded gun.
-->I was like his in-house commie. If anything went wrong on set, he'd yell, "Where's that pinko Hopper?" On ''True Grit'', he arrived one day in his helicopter, and started shouting: "My daughter went up to UCLA yesterday and that communist Stokely Carmichael made a speech using all this four-letter language, and I want that fucking pinko Hopper, I want his fucking head!" But he was always funny to me, I think he liked me. And his sons were good friends of mine. He just believed I was a communist.
* PlayingAgainstType: Creator/JohnWayne usually played straight heroes, not middle-aged drunken {{Anti Hero}}es.
* WhatCouldHaveBeen:
** [[Music/{{Carpenters}} Karen Carpenter]] and Creator/SallyField were considered for Mattie Ross.
** Music/ElvisPresley was considered for La Boeuf, but "Colonel" Tom Parker, his manager, insisted that Presley should receive top billing.

!!2010 version
* AwardCategoryFraud: Despite Mattie being the protagonist, Creator/HaileeSteinfeld was demoted by almost every single film awards association to "Best Supporting Actress" while her co-star Creator/JeffBridges was nominated for Best Actor. [[note]]Though for the Oscars at least, there is a theory it was to give her a better chance of actually ''winning'', since Best Actress was considered a lock for Creator/NataliePortman at the time. [[/note]]
* BillingDisplacement: Creator/JoshBrolin is billed third and above the title, but doesn't appear until an hour in and has somewhat less presence.
** AndStarring: Creator/HaileeSteinfeld, despite being the protagonist, is the last name to appear in the credits. This may be partially due to it being her first film.
* CaliforniaDoubling: Set in Eastern Oklahoma, shot in New Mexico and Texas. As anyone familiar with Oklahoma (or New Mexico and Texas!) can tell you, they don't really look alike.
* TheDanza: Creator/BarryPepper plays Lucky Ned Pepper.
* DawsonCasting: Creator/HaileeSteinfeld was 13 at the time, while Creator/JeffBridges was 61.
* DisabledCharacterDisabledActor: A woman missing her left forearm (due to a birth defect) was hired to play older Mattie in shots that don't show her face. She winds up having more screen time than the actress that plays older Mattie, mostly due to the long shot at the end of Mattie [[spoiler:walking away from Rooster's grave]] that lasts into the credits.
* WhatCouldHaveBeen: Creator/MichaelBiehn auditioned for Ned Pepper.
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