Were M3 and M4 executive produced by a French person and written by a actor
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.0f8l9c .
?x1 a ns:film.actor .
M3 ns:film.film.executive_produced_by ?x0 .
M3 ns:film.film.written_by ?x1 .
M4 ns:film.film.executive_produced_by ?x0 .
M4 ns:film.film.written_by ?x1
}