Similar queries give incredible accurate results ("movie with Brad Pitt and Edward Norton","movie where james stewart is afraid of heights") , but it seems to work just with movies...

I got spottier results trying with music and games related queries. Google probably picks up the words "movie" or "film", and than search the rest of the query restricting the first few results to movie-related websites.

Still, it's clearly not a "Number of French military victories" kind of gimmick, search is definitely going in that direction in the following years.