question: Which Canadian writer and star of M0 influenced a screenwriter
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.film M0 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:influence.influence_node.influenced ?x1 .
  ?x0 ns:people.person.nationality ns:m.0d060g .
  ?x1 a ns:film.writer
  }