In the film Ernest Goes to Camp when the Cheif was speaking seems to have been using real Plains Indian Sign Language based on the Wikipedia article for the mov
cat-people
wrong-turn
30-days-of-night
dirty-dancing
ghostbusters-afterlife
11.22.63
borgman
breaking-in
love-song-for-bobby-long
where-the-wild-things-are
jason-bourne
dasavathaaram
lost-in-space-1965
sweeney-todd
batman-beyond
izombie
laverne-and-shirley
pixar
ride-along-2
wrong-turn-2021
luis-bunuel
the-lion-king
angry-birds
sicario
cursed-2020
perfect-sense
my-life-as-a-courgette
22-july
the-aviator
le-temps-retrouve