Was a production company 's male British employee M1
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
M1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0 .
M1 ns:people.person.gender ns:m.05zppz .
M1 ns:people.person.nationality ns:m.07ssc
}