Was M2 a film distributor whose employee played M0 and played M1
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.character M0 .
?x0 ns:film.actor.film/ns:film.performance.character M1 .
M2 a ns:film.film_distributor .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}