Revealing mistake: In the beginning of the movie, when Jakob is chasing the newspaper, there are several times you can see the string they use to drag it.
Jakob the Liar (1999)
1 revealing mistake - chronological order
Directed by: Peter Kassovitz
Starring: Robin Williams, Liev Schreiber, Hannah Taylor Gordon, Eva Igo, Istvan Balint
Factual error: In the very last scene the train is stopped by the Russian army and their tanks. The tanks are T-54's, which were not produced until 1955. (01:53:28)
Jakob Heym: Hitler goes to a fortune-teller and asks, "When will I die?" And the fortune-teller replies, "On a Jewish holiday." Hitler then asks, "How do you know that?" And she replies, "Any day you die will be a Jewish holiday."