Question: Where did the subject of the film, Infiltrating Al Qaeda, attack?
Answer(s):
answer: Taliban insurgency
answer: September 11 attacks

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:film.film_subject.films ns:m.0vb04m2 . 
?c ns:base.disaster2.attacker.attack_s ?y .
?y ns:base.disaster2.attack_process.attack_event ?x .
?y ns:base.disaster2.attack_process.attacker ?c .
}