“The Real Charlie Chaplin” is an alluring title for a documentary about the man who was arguably the greatest comic artist in the history of the planet. (I could be wrong in that assessment; I wasn’t around in 1230 or 5600 B.C. But I’ll stand by it.) The title suggests that we’re going to get an unvarnished look at the man behind the curtain — the brilliant and complicated human being that Charlie Chaplin was, a charmer and a scoundrel, a sweetheart and a monster, not to mention a celebrity of scandalous appetites. All of that is covered, quite ingeniously, in “The Real Charlie Chaplin.”Yet the documentary doesn’t shy away from immersing us in Chaplin’s artistry, a subject that has, of course, been covered once or twice before. We learn a lot about his films and how, exactly, he put them together. And the trick of...<p><a target="_blank" href=http://imdb.com></a></p>