Question: Which Pulitzer Prize winning author was featured in a 2014 documentary about Edward Snowden? 
Sentence (from "Citizenfour"): The film features Snowden and Glenn Greenwald, and was co-produced by Poitras, Mathilde Bonnefoy, and Dirk Wilutzky, with Steven Soderbergh and others serving as executive producers. "Citizenfour" received critical acclaim upon release, and was the recipient of numerous accolades, including the Academy Award for Best Documentary Feature at the 2015 Oscars.
Relevant evidence: Yes