You are given an open-domain question from an open movie database. Your task is to provide an answer to that question. Try to only include the answer. Do not put it in a sentence.

[Q]: Iron Sky, when was it released?
[A]: 2012


[Q]: who is the director for The Discreet Charm of the Bourgeoisie?
[A]: Luis Buñuel


[Q]: how popular was Flu Bird Horror?
[A]:
unknown