Character mistake: When Ronnie is cutting the article about Roy's encounter out of the newspaper, the title of the article begins with "UFO's...", the apostrophe making it possessive. It correctly should have been "UFOs...", with no apostrophe making it plural as intended.
Suggested correction: You are incorrect. The article is actually correct. It is used as a contraction, not a possessive. http://www.thepunctuationguide.com/apostrophe.html.
It's not a contraction. A plural acronym is simply "s" added to the acronym. An apostrophe never indicates plurality.
Suggested correction: There is no standard on how to pluralize acronyms and either way is acceptable, depending on a person's preference. An apostrophe does not automatically make something possessive, such as using apostrophes in contractions to replace missing letters.
Character mistake: "Cosmic Kidnapping" is spelled incorrectly with a missing P in a newspaper article at the press conference where he breaks his pencil while drawing.
Character mistake: When Roy is heading toward Devil's Tower in his car, you can hear a radio report. The man says something about the Tetons and then mentions the town of Meteetsee. He says "Meh-test-ie." That's the incorrect pronunciation.