21. "This is Not a Film" (2012)
Critic score: 90/100
User score: 6.2/10
Plot summary: "This clandestine documentary, shot partially on an iPhone and smuggled into France in a cake for a last-minute submission to Cannes, depicts the day-to-day life of acclaimed director Jafar Panahi during his house arrest in his Tehran apartment."
What critics said: "How did Mr. Panahi do this? I'm at a bit of a loss to explain, to tell you the truth, since my job is to review movies, and this, obviously, is something different: a masterpiece in a form that does not yet exist." — The New York Times