Multiple sources are reporting that Dwayne "The Rock" Johnson is in discussions to appear in the G.I. Joe movie sequel, Cobra Strikes. According to Deadline.com, Johnson would be cast as heavy machine gunner Roadblock. While Paramount and Johnson negotiate the details of his services, ComicBookMovie.com is reporting that IMDB is confirming (you'll have to pony up for a subscription if you want to verify the information) Stephen Martines for the role of Cross. It's widely assumed that Cross--as noted in the casting call--is Cross-Counrty, the country music loving driver of the H.A.V.O.C.