Factual error: The Ghost of Christmas Past takes Frank to the year 1969, where he watches his younger self giving Claire a set of twelve Ginsu knives on Christmas Eve. Young Frank even remarks that the Ginsu knives are sharp enough to cut through a tin can as easily as a tomato. Problem is, Ginsu knives didn't arrive on the market until 1978, which is when the tin-can-cutting demonstration was first used.
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Suggested correction: Also, if you take the date 1955, being 4 years old, so born 1951, then it says, "Take me to his office," putting it in 1968, making him 17 years old, working for a firm, but Bill Murray is playing a 17-year-old.
