Factual error: Jonathan is lying in the middle of the skating rink when the second cashmere glove falls upon him. Looking around, he notices Sarah at the edge of the rink. Despite Sarah being a female and the fact that it is snowing, even Nolan Ryan would have a difficult time throwing something as light as cashmere that distance. (01:22:05)
Factual error: John Cusack enters a cab and asks to go to the New York Times offices on 42nd street. The Times is on 43rd Street. (00:28:00)
Factual error: In the final flight scene, where Sara prepares to board a plane to fly back to San Fran from NY, we see the outside of a Boeing 747. On the inside, we see a DC-9 interior (a 747 would usually have a 3-4-3 seating configuration instead of the 2-3 configuration of a DC-9). (00:11:40)
Answer: He didn't want to marry Halley anyway.