Did a film star M3 's American editor and star a person
SELECT count(*) WHERE {
?x0 a ns:film.film .
?x0 ns:film.film.starring/ns:film.performance.actor ?x1 .
?x0 ns:film.film.starring/ns:film.performance.actor ?x2 .
?x1 a ns:people.person .
?x2 ns:film.editor.film M3 .
?x2 ns:people.person.nationality ns:m.09c7w0
}