You don’t have to be a dog owner to love a dog movie — although watching it might be even more enjoyable with your canine BFF by your side. Since the silent British film “Rescued by Rover” hit the big screen in 1905 — starring a collie that helped tell the story of a kidnapped baby — dogs have easily stolen the show from their human co-stars. The latest dog movie to hit the big screen? “The Art of Racing in the Rain,” which was released in the U.S. on Aug. 9...