Did M1 direct a film and executive produce a film 's prequel
SELECT count(*) WHERE {
?x0 ns:film.film.sequel ?x1 .
?x1 a ns:film.film .
?x2 a ns:film.film .
M1 ns:film.director.film ?x2 .
M1 ns:film.producer.films_executive_produced ?x0
}