Citizenfour is a 2014 documentary film directed by Laura Poitras, concerning Edward Snowden and the NSA spying scandal. The film had its US premiere on October 10, 2014, at the New York Film Festival and its UK premiere on October 17, 2014, at the BFI London Film Festival. 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.

Despite being a documentary, this is a surprisingly tense movie. While I knew in general what was happening, and what would happen it remains engaging throughout its length. It successfully merges TV reports and location shoots into a story that mainly takes place in a hotel room. The only reservation I have is that occasionally it stops to observe Snowdon doing very mundane things, when I could be getting on with the story.