get label (Name) instead QID field

Question

Using the following query:

SELECT ?item ?itemLabel ?itemDescription ?director WHERE {
  ?item wdt:P31 wd:Q11424 .
  ?item wdt:P161 wd:Q2263 .
  OPTIONAL{?item wdt:P57 ?director .} 
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}

I can get movies with Tom Hanks and QID of director.

But how can I get director's name (label of this QID) in this table.

Query can be seen on Wikidata Query Service page.

Answer 1

Just add ?directorLabel to the select. The label service seems to work on any declared variable if you suffix it with 'Label'