Just as Ben Affleck gears up to begin production on his thriller Argo , the filmmaker-actor is already targeting his follow-up. Ben Affleck Eyeing Role in Baz Luhrmann's ' Great Gatsby ' Affleck is in negotiations to star in, direct and produce Line of Sight , an action project at Warner Bros. that is being produced by Joel Silver and Andrew Rona. The idea, conceived by Silver Pictures' Alex Heineman (who also exec produces), centers on an elite commando squad transporting cargo while dealing with a global threat. One of the conceits of the movie is that it tells the tale from a point-of-view akin to a first-person shooter game. The script was recently worked on by Peter O’Brien, the man who wrote the game Halo: Reach for Xbox 360. The project was initially picked upby Warner Bros.-based Silver Pictures in March as a spec written by F. Scott Frazier. Affleck has been moving almost non-stop as a filmmaker since his directorial debut, 2007’s Gone Baby Gone . H