Question: What movie was released before 2009-08-27 and includes acot Liam Hemsworth?
Answer(s):
answer: Knowing

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.04yd0fh)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.04yd0fh ns:film.actor.film ?y .
?y ns:film.performance.film ?x .
?x ns:film.film.initial_release_date ?num .
FILTER (?num < "2009-08-27"^^xsd:dateTime) . 
}