In 2007, Jamie Foxx won Best Actor for his subtle performance as Ray Charles. Boseman exceeds that solid standard. Incarnating James Brown in all his ornery uniqueness, he deserves a Pulitzer, a Nobel and instant election to the Rock and Roll Hall of Fame.

Get On Up isn't a perfect-picture; there are moments of awkwardness, little gambles that don't quite pay off. But it's one of those experiments that's both flawed and amazing, a mainstream movie (with Mick Jagger as one of its producers) that fulfills old-fashioned, entertainment-value requirements, even as it throws off flashes of insight.

Get on Up belongs, as it must, to Boseman, who delivers the kind of charisma, showmanship, sex appeal, and tireless energy that allows us to believe him as the Hardest Working Man in Show Business.

Artistically, Get on Up rivals “Walk the Line,” with a lead performance on a par with the career-making turns of Angela Bassett (“What’s Love Got to Do With It?”) and Jamie Foxx (“Ray”). With this wonder of the summer, Boseman and Taylor deliver a piece of American cultural history every bit as important as the Jackie Robinson story, a story told with heart, humor, funk and soul.

Like Brown, the movie is dynamic and entertaining as hell.