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A documentary that advocates a particular, often strong, stance on an issue -- a film that is both a come to Jesus and a call to action.
George: Did you see Gore's 'An Inconvenient Truth'?
Dick: It was amazing. Quite the rantumentary, though it lacked some of the passion of Michael Moore's masterpiece 'Fahrenheit 9/11'.
by Matthew Lake October 02, 2006
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