Other mistake: The ticket agent at Grand Central Terminal tells Alex that the Oyster Bar is upstairs. The Oyster Bar is located below the main floor, accessible by two ramps on either side of the main level.
Continuity mistake: During the ambush, young Jack, on horseback, takes off after the wagon which is carrying his wounded fiancé. The chase is long including a cut away and yet the wagon winds up only yards away from the ambush where the chase began.
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