Screenings for Paramount’s “G.I. Joe” sequel “G.I. Joe: Retaliation” have been taking place in earnest with test audiences. However, the question is being asked, “Are all audiences seeing the same film?” The answer is, “No!” Apparently, studio executives are testing two endings to the film to see which one plays better with movie goers. In any case, the studio is taking care to ensure that their multi-million dollar action/adventure/sci-fi/thrill er doesn’t lay an egg at the box office.