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Canadian director Astra Taylor takes philosophy onto the streets in this stimulating documentary.

In 10-minute bursts, eight leading thinkers expound on their ideas while roving various public spaces.

True, the general viewer’s offered little background information on the interviewees, but there are some dazzling intellectual turns on display.

From the back of a car, the garrulous Cornel West (of Matrix sequels fame) ponders philosophy’s relationship to a meaningful life.

Most provocative though, is Slavoj Zizek, who critiques the ecology movement while rooting around a rubbish dump.