Was a film 's writer founded by M3 's director and founded by M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.writer.film ?x1 .
?x0 ns:organization.organization.founders ?x2 .
?x0 ns:organization.organization.founders M0 .
?x0 ns:organization.organization.founders M1 .
?x1 a ns:film.film .
?x2 ns:film.director.film M3
}