Continuity mistake: Ms Froy's writing on the window has changed position when Iris spots it later.
Continuity mistake: When Iris, Gilbert and Dr. Hartz are together in the dining car, they order three drinks, one for each of them. Gilbert swallows his in one gulp. A minute later, Dr. Hartz proposes a toast, and all three of them guzzle their drinks. Where did Gilbert get another glass of brandy?
Continuity mistake: Iris, Gilbert and the other English characters lose their luggage when the bad guys have the back of the train uncoupled. When they arrive in London at the end, Iris and Gilbert are wearing new clothes evidently acquired after their escape. However, they carry nothing when they leave the train. What happened to the clothes they had been wearing before?