question: Did M3 and M4 marry a British actor 's spouse and influence a film 's producer
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x1 a ns:film.film .
  ?x2 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x3 .
  ?x3 a ns:film.actor .
  ?x3 ns:people.person.nationality ns:m.07ssc .
  FILTER ( ?x2 != ?x3 ) .
  FILTER ( M3 != ?x2 ) .
  FILTER ( M4 != ?x2 ) .
  M3 ns:influence.influence_node.influenced ?x0 .
  M3 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x2 .
  M4 ns:influence.influence_node.influenced ?x0 .
  M4 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x2
  }