Opening this week: Dolittle—Robert Downey, Jr. plays the newest screen version of Hugh Lofting’s character, the doctor who can talk to the animals. Directed by Stephen Gaghan and set in a vague idea of the 19th Century, the movie has a late point of attack: The Doc has long since learned his inter-species polyglot skills and is an embittered widower, withdrawn from human society to hang out with his animal pals in his vast estate....