Israel did not support the making of the movie because of the director - it was trying to build up its film industry and bring it more onto the international stage. His project worked, and it did just that. He owes nothing to Israel which supported him as a measure to build up the film industry.
ISIS claims responsibility for bombing in Baghdad suburb; death toll hits 21 (Reuters)
from the article: Ajami co-director ahead of the Oscars: I don't represent Israel