Question: Who is the film producer who played Batman in 2012?
Answer(s):
answer: Bruce Greenwood

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01d5g)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01d5g ns:tv.tv_character.appeared_in_tv_program ?y .
?y ns:tv.regular_tv_appearance.actor ?x .
FILTER(NOT EXISTS {?y ns:tv.regular_tv_appearance.from ?sk0} || 
EXISTS {?y ns:tv.regular_tv_appearance.from ?sk1 . 
FILTER(xsd:datetime(?sk1) <= "2012-12-31"^^xsd:dateTime) })
FILTER(NOT EXISTS {?y ns:tv.regular_tv_appearance.to ?sk2} || 
EXISTS {?y ns:tv.regular_tv_appearance.to ?sk3 . 
FILTER(xsd:datetime(?sk3) >= "2012-01-01"^^xsd:dateTime) })
?x ns:people.person.profession ns:m.01d_h8 . 
}