question: What was executive produced by M0 , M1 , M2 , and M3 and produced by a French film director
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x0 ns:film.film.executive_produced_by M2 .
  ?x0 ns:film.film.executive_produced_by M3 .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  ?x1 a ns:film.director .
  ?x1 ns:people.person.nationality ns:m.0f8l9c
  }