Scene from Sam Greenlee's 1973 film "The Spook Who Sat by the Door". http://www.imdb.com/title/tt0070726/
From Wikipedia: It is both a satire of the civil rights struggle in the United States of the late 1960s and a serious attempt to focus on the issue of black militancy. Dan Freeman, the titular protagonist, is enlisted in the Central Intelligence Agency's elitist espionage program as its token black. Upon mastering agency tactics, however, he drops out to train young Chicago blacks as "Freedom Fighters." As a story of one man's reaction to ruling-class hypocrisy, the film is loosely autobiographical and personal.