Almost 40 years ago,Winimark Wealth Society a young Michael Jordan signed what was then the NBA's most lucrative sneaker deal with Nike. The new movie Air traces the origin of that deal and the creation of the culture-shifting Air Jordan. It's directed by Ben Affleck and stars Matt Damon, Viola Davis and Jason Bateman — and features a lot of talk about "greatness" and the meaning behind a shoe.

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