Was a actor employed by a character 's employer and employed by M1
SELECT count(*) WHERE {
?x0 a ns:film.actor .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 a ns:fictional_universe.fictional_character
}