Were M3 and M4 founded by M2 's writer and director and founded by M1 's American star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:people.person.nationality ns:m.09c7w0 .
?x1 ns:film.director.film M2 .
?x1 ns:film.writer.film M2 .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x1 .
M4 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders ?x1
}