Question: Which film directed by Ron Howard was released earliest?
Answer(s):
answer: Cotton Candy

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0g2lq)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0g2lq ns:film.director.film ?x .
?x ns:film.film.release_date_s ?c .
?c ns:film.film_regional_release_date.release_date ?num .
}
ORDER BY ?num LIMIT 1