There's probably no need for a Blockbuster. It'll probably turn out in 20 years time that there really wasn't a war in Iraq..it was just documentary fiction. Hollywood using all its special effects to give the impression of a war that was probably filmed in Nevada.
Reminds me of the 'Capricorn One' film, which examined the premise that the moon landings never really took place but were faked.
Or maybe we'll get Dubya and Tony stepping out of a shower together Dallas style to announce it was all a dream.