Did M1 employ M0 's prequel 's director , editor , and star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:film.director.film ?x1 .
?x0 ns:film.editor.film ?x1 .
?x1 ns:film.film.sequel M0 .
M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}