SEScoops posted back on June 27, 2011 that Dwyane "The Rock" Johnson has signed on to appear in the next G.I. Joe movie. There were a few pictures that were attached to that posting. His character will be known as Roadblock.
The second movie will be released next August (August 10, 2012). Jon Chu is at the helm again for this sequel, re-boot for the franchise.
Script writers are Rhett Reese and Paul Wernick. Aside from The Rock, Bruce Willis and Ray Stevenson will also appear in this movie. Channing Tatum should also be making a come back in this picture. Bruce Willis will take on the role of Joe Colton (i.e the ORIGINAL G.I. Joe).
Jonathan Pryce will reprise his role as the US President that Zartan (Arnold Vosloo) has replace at the end of the first movie.
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Ref.
1. Reelz.com. G.I. Joe 2: Retaliation. (http://www.reelz.com/movie/276025/g-i-joe-2-retaliation/).
2. Screenrant. (http://screenrant.com/gi-joe-2-release-date-2-sandy-104604/).
3. IMDb.com. G.I. Joe 2: Retaliation (2012). (http://www.imdb.com/title/tt1583421/).
4. Filmschoolrejects.com. "Bruce Willis Negotiating for 'G.I. Joe 2," Cobra Commander Panics" by Nathan Adams. August 10, 2011.(http://www.filmschoolrejects.com/news/bruce-willis-g-i-joe-2.php).
5. SEScoops.com. "The Rock Lands Role In GI Joe Movie, DDP On RAW, Seth Rollins" June 27, 2011. (http://www.sescoops.com/wrestling-news/wwe/the-rock-lands-role-in-gi-joe-movie-ddp-on-raw-seth-rollins/).