Continuity mistake: Several characters say that the train leaves from Shanghai. But the caption at the beginning says that the starting location is Peking (which is in fact where the real Trans-Siberian Express did depart from).
Dr. Wells: What are you going to astound the scientific world with this time?
Professor Saxton: You'll read about it in the Society's annual report. A remarkable fossil.
Dr. Wells: Fossil? But you've got something live in there, I heard it.
Professor Saxton: You're mistaken.
Dr. Wells: You won't need to feed it then.
Professor Saxton: The occupant hasn't eaten in two million years.
Dr. Wells: That's one way to economize on food bills.