Reminds me of the movie Skullduggery starting Bert Reynolds, and Roger C. Carmel (aka Harry Mudd of Star Trek fame.)
Cute little prehistoric people live in....I believe Indonesia or New Guinea.....are in the way of evil captalist oil drillers.....so 1970's....or today for that matter if you are on board with the Ward Churchill/Howard Dean cabal.....
Except that today, Ward Churchill would claim to have written the script : "an ORIGINAL screenplay by Vietnam war hero, native American activist, writer and university professor WARD CHURCHILL based on an older screenplay with or without permission of the author, depending on whether I get caught and I WOULD have beeen in Vietnam if I coulda, honest wannabe Injun