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Factual error: As someone already noted, the Boeing 747 didn't enter commercial service until 1970. In addition, the Pan Am 747 type shown flying the characters back to the U.S. never existed. It has the extended upper deck common to the 747-300 and -400 series (introduced in the 1980's) but with only three windows (common to some -100 and -200 types). Also it has higher bypass engines which came later.

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