query: SELECT DISTINCT ?item ?itemLabel ?imdb ?anno
  WHERE
  {
      ?item wdt:P31/wdt:P279* wd:Q11424.
      ?item wdt:P57 ?regista .
      ?item wdt:P577 ?date .
      BIND (YEAR(?date) as ?anno).
      OPTIONAL { ?regista wdt:P345 ?imdb. }
      OPTIONAL { ?item schema:description ?itemDescription  }
      FILTER (!BOUND(?itemDescription))
    
      SERVICE wikibase:label { bd:serviceParam wikibase:language "it"}
  }