Character mistake: Red says that Andy crawled to freedom through 500 yards - 'just shy of half a mile'. 500 yards is far less than half a mile; in fact, it's less than a third of a mile. It is however just shy of half a kilometer, which may be what King was thinking of when he wrote the book.
Character mistake: When Guy and his girlfriend are discussing why he loves the movies and how they help him remember important times in his life, Guy makes a reference to the obscure 1979 basketball movie The Fish That Saved Pittsburgh, and says how he loved Gabe Kaplan in it. Gabe Kaplan was never in The Fish That Saved Pittsburgh, but did star in a different obscure basketball movie from 1979 called Fast Break.
Character mistake: When preparing for the parade, Shellhammer tells Dorey that her Santa is wearing a topcoat and a fedora. Kringle is actually wearing a Homburg, noticeable by the lack of a pinch at the front.
Character mistake: In the beginning of the film, Doug Chesnick is on a plane returning to Washington. The flight attendant brings him a Bloody Mary with the Vodka in a bottle next to the drink on the tray. He drinks the drink without pouring in the Vodka.
Character mistake: At the police station, the detective calls, "George Swinton," but the name is Stewart, not George.
Character mistake: The batter hit a line drive hit over the second baseman Garcia's head. The pitcher Bass whips his head to his left as the ball goes to right or right center field. The announcer said there's a base hit to left field when it was right field.
Character mistake: Jo says Laurie is a "captive like Smee in 'Nicholas Nickleby.'" There is no such character in "Nicholas Nickleby." The character Jo is referring to is named Smike.