It did not win any Oscars.
Garbo won zero Oscars
The Dark Knight Rises did not win any Oscars, but the Dark Knight won two Oscars.
Woody Allen has won 4 Oscars: Two for "Annie Hall" (1977) as Writer and Director, and two more as Writer for "Hannah and Her Sisters" (1986) and "Midnight in Paris" (2011).
Revolutionary Road was nominated for 3 Oscars but didn't win any.
None. It wasn't nominated for any Oscars.
Zero - Ghost Town (2008) did not win any Oscar. It was not nominated for any Oscars.
It was nominated for 3 Oscars, and of those 3 it won 2.
The trilogy won 17 oscars.
The answer is 5