My two (minor) problems with the film (SPOILERS)
(1) The film opens with the hit on the Palestinian in Istanbul. The Mossad could not carry out a foreign operation of this sort without permission from the Foreign Ministry, which would never compromise relations with Turkey, especially over someone clearly not a major figure.
(2) I can understand that Eyal managed to get a gun in Berlin (most likely from a safe locker in the city), but how did Axel accept his explanation that he took it on the plane - flying out of Tel Aviv?
"Do you know, we could go,
We are free;
Any place you could think of
We could be"