http://io9.com/5908627/the-aliens-in-battleship-could-have-been-much-weirder
The other project the brothers have in the pipeline is the sequel to Red, which they hope will start shooting in the fall. "If the last one was domestic, this one's going international," says Jon.
Adds Eric: "Pretty much all the original cast is back. All the surving cast. So John Malkovich, Bruce Willis, Helen Mirren, Mary Louise Parker, they're all back. And we're going to be introducing a couple other stars of that Oscar-winning caliber, who will be additional characters whom we'll see. Not quite locked down, but we're close. The script is written, but we're doing some last-minute tweaking."