Was M2 directed by a British actor , edited by M3 , and edited by M4
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:people.person.nationality ns:m.07ssc .
M2 ns:film.film.directed_by ?x0 .
M2 ns:film.film.edited_by M3 .
M2 ns:film.film.edited_by M4
}