Question: Which of the Indiana Jones movies was released on June 12, 1981?
Answer(s):
answer: Indiana Jones and the Raiders of the Lost Ark

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.03ttl)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.03ttl ns:film.film_character.portrayed_in_films ?y .
?y ns:film.performance.film ?x .
?x ns:film.film.film_series ns:m.0hn_72f .
?x ns:film.film.release_date_s ?c .
?c ns:film.film_regional_release_date.release_date "1981-06-12"^^xsd:dateTime . 
}