question: What film that a cinematographer executive produced was executive produced by M1
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x1 a ns:film.cinematographer
  }