Other mistake: George's hedonistic neighbor lives practically across the other side of the yard, but George drives clear around the coastline into an adjoining neighborhood to pay him a visit.
Other mistake: Miss Froy writes her surname in window condensation on the train before she is abducted, where it's supposed to have remained visible for hours, which is dubious in high summer. Then it all of sudden disappears as they go through a tunnel, but why would going through a tunnel cause condensation on inside of train window to all of a sudden disappear?