What was a film whose executive producer and writer wrote M1 , M2 , M3 , and M4
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film .
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.written_by ?x1 .
?x1 ns:film.writer.film M1 .
?x1 ns:film.writer.film M2 .
?x1 ns:film.writer.film M3 .
?x1 ns:film.writer.film M4
}