“You know, half the people in this place could be prosecuted.” Oliver Stone, the film director, was sitting across from me over a late lunch in the Grill Room of the Four Seasons restaurant in Midtown Manhattan last week. [SNIP] If one man epitomizes the populist view of Wall Street and corporate America, it is Mr. Stone, whose new film, “Wall Street: Money Never Sleeps” opens next week. It is the sequel to his hit movie “Wall Street” in 1987. The original tapped into the zeitgeist of the moment — “Greed, for lack of a better word, is good,” as...