Caroline Peters, who plays Pia, revealed in an interview on Israeli television that her actual grandfather was a Nazi, just like her character`s grandfather in the film
Continuity: In both times when Eyal goes to the shooting range, his hits change places on targets once targets are pulled to the shooter position.
Errors in geography: When Eyal visits Menachem`s Berlin hotel, a shot down its hall reveals that all the rooms have Mezuzot on the doorframes. At the door to Menachem`s room, the only room without a Mezuzah, there is a clearly visible unpainted patch from which the Mezuzah had been removed just for that shot. A Mezuzah is a small box filled with bible passages (Deuteronomy 6:4-9 and 11:13-21). Jews put them on the doorframes of houses and other buildings. Their presence reveals that the filmmakers used an Israeli location for that hotel instead of a German one.
Continuity: When Eyal goes to Alex and Pia`s hotel in Tel Aviv to pick them up, the hotel seen in the establishing shot is the Renaissance Hotel. However, the next shot of them actually walking out of the hotel has them walking under a sign and past security barricades that all say Sheraton Moriah Hotel.
Factual errors: When Eyal arrives Berlin, we see a Lufthansa airplane landing at the airport. However, Lufthansa never flew from Tel Aviv to Berlin, only to Frankfurt. It is also not reasonable that a Mossad agent will not fly with El-Al Israel airlines, which has a direct flight from Tel Aviv to Berlin. (imdb.com)
Caroline Peters, who plays Pia, revealed in an interview on Israeli television that her actual grandfather was a Nazi, just like her character's grandfather in the film (imdb.com)