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Other mistake: The end credits show Annie, Clarabel, Bertie and Harold under the voice cast for "the trains", but Annie and Clarabel are rolling stock, Bertie is a road vehicle, and Harold is an aircraft, respectively.

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Plot hole: Throughout the film, Sodor seems to be devoid of humans besides Bertie's driver and the live-action humans. Also, the engines with the exception of Lady do not have crews.

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Continuity mistake: James' whistle disappears when Diesel 10 appears at the Smelter's yard.

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