Was M2 a film whose writer and editor influenced M0 and M1
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced M0 .
?x0 ns:influence.influence_node.influenced M1 .
M2 a ns:film.film .
M2 ns:film.film.edited_by ?x0 .
M2 ns:film.film.written_by ?x0
}