Was M3 directed by and produced by a German person that M2 was directed by and starred
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.director.film M2 .
?x0 ns:people.person.nationality ns:m.0345h .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}