Was a Mexican film editor 's employer 's employee M0 's star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M0 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 a ns:film.editor .
?x2 ns:people.person.nationality ns:m.0b90_r
}