The Rev. Al Sharpton has been called a lot of names in his public life: a hustler, a racist, an opportunist, a fraud, a rat, a jester.
He embraces at least one of the intended insults, a name often hurled by his critics on the right and the left: “Loudmouth.” That's also the title of a two-hour documentary about the national civil rights leader debuting at theaters in over 20 cities Friday.
