Did a film editor that a actor influenced edit M1 and edit M2
SELECT count(*) WHERE {
?x0 a ns:film.editor .
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x1 a ns:film.actor
}