Every few years, the great James Cromwell gets a role reminding us how great he is — “Babe,” “L.A. Confidential,” “The Artist,” choice guest spots on “The West Wing,” “24” and “Six Feet Under.” Now he’s playing a romantic lead — opposite Genevieve Bujold — a woman to make an old man build her a new house, by hand. Or so it seems in “Still Mine”? Got questions for Babe’s farmer-mentor? Comment below.