Rosewater is the story of Iranian-born journalist Maziar Bahari, who was arrested and tortured in Tehran on claims of espionage during the 2009 presidential election campaign.
A piece of subtext: one of the things Bahari's interrogator used against him during his 118 days of detention was the fact that Bahari had once appeared on US news-comedy program The Daily Show. This film is directed by Daily Show host Jon Stewart.
(H/t The Browser.)