Question: Which actor who portrayed Lex Luthor was nominated for the Chicago Film Critics Association Award for Best Actor award?
Answer(s):
answer: Gene Hackman

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.04q78)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.04q78 ns:film.film_character.portrayed_in_films ?y .
?y ns:film.performance.actor ?x .
?x ns:award.award_nominee.award_nominations ?c .
?c ns:award.award_nomination.award ns:m.0279c15 . 
}