The few live action 3D films have mostly been shot using 3D cameras, which essentially feature two lenses, one for each eye. Here are some of my thoughts, transplanted from an earlier article about Marvel possibly considering converting Iron Man 2 to 3D: While I'm one of the few web bloggers who believes that 3D is more than a gimmick, I still am not convinced that post production 3D processing is good enough for public consumption. The family action-adventure film G-Force was converted to 3D after the fact, but most of the film's creatures were computer generated, which makes things a bit easier. This isn't the first time that producer Jerry Bruckheimer has made this decision.
