Question: Which movies released before 1998-07-22, did Omar Epps appear in?
Answer(s):
answer: Scream 2
answer: Higher Learning
answer: Major League II
answer: The Program
answer: Juice

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02_tv5)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02_tv5 ns:film.actor.film ?y .
?y ns:film.performance.film ?x .
?x ns:film.film.release_date_s ?c .
?c ns:film.film_regional_release_date.release_date ?num .
FILTER (?num < "1998-07-22"^^xsd:dateTime) . 
}