Did M3 employ a Chinese screenwriter and employ a actor
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x1 a ns:film.writer .
?x1 ns:people.person.nationality ns:m.0d05w3 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x1
}