question: Did M2 star a British spouse of M1 and star M3 , M4 , and M5
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.07ssc .
  ?x0 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses M1 .
  FILTER ( ?x0 != M1 ) .
  M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M2 ns:film.film.starring/ns:film.performance.actor M3 .
  M2 ns:film.film.starring/ns:film.performance.actor M4 .
  M2 ns:film.film.starring/ns:film.performance.actor M5
  }