question: Which Italian star of a film wrote M1 's prequel
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
  ?x0 ns:film.writer.film ?x2 .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  ?x1 a ns:film.film .
  ?x2 ns:film.film.sequel M1
  }