After several years of conflict with the Iranian government over the content of his films (including several short-term arrests), Panahi was arrested in March 2010 along with his wife, daughter, and 15 friends, and later charged with propaganda against the Iranian government. Despite support from filmmakers, film organizations, and human rights organizations around the world, in December 2010 Panahi was sentenced to six years in prison and a 20-year ban on directing any movies, writing screenplays, giving interviews with Iranian or foreign media, or leaving the country except for medical treatment or making the Hajj pilgrimage. While awaiting the result of an appeal he made "This Is Not a Film" (2011), a documentary feature in the form of a video diary. It was smuggled out of Iran on a flash drive hidden inside a cake and shown at the 2011 Cannes Film Festival. In February 2013 the 63rd Berlin International Film Festival showed "Closed Curtain" ("Pardé") by Panahi and Kambuzia Partovi in competition; Panahi won the Silver Bear for Best Script. Panahi's subsequent film "Taxi" also premiered in competition at the 65th Berlin International Film Festival in February 2015 and won the Golden Bear, the prize awarded for the best film in the festival. In 2018 he won the Cannes Film Festival Award for Best Screenplay (tied) for "3 Faces"; he was unable to leave Iran to attend the festival, so his daughter, Solmaz Panahi, read his statement and received the award on his behalf.