Question: What films starring Jennifer Lawrence that were released before 12-25-2015?
Answer(s):
answer: The Poker House
answer: X-Men: First Class
answer: Serena
answer: The Hunger Games
answer: Silver Linings Playbook
answer: Not Another High School Show
answer: The Hunger Games: Mockingjay, Part 1
answer: Like Crazy
answer: The Hunger Games: Mockingjay, Part 2
answer: Winter’s Bone
answer: The Beaver
answer: Garden Party
answer: The Hunger Games: Catching Fire
answer: Devil You Know
answer: The Burning Plain
answer: House at the End of the Street
answer: X-Men: Days of Future Past
answer: American Hustle

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02x0dzw)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02x0dzw ns:film.actor.film ?y .
?y ns:film.performance.film ?x .
?x ns:film.film.initial_release_date ?num .
FILTER (?num < "2015-12-25"^^xsd:dateTime) . 
}