With all due respect, this has no grounds in reality. As comment there pointed out Trumbull did a 70mm showscan format <a href="http://en.wikipedia.org/wiki/Showscan" rel="nofollow">http://en.wikipedia.org/wiki/Showscan</a> that was superior to anything in existence then, but it didn't lift off. IMAX also has 70mm (and now digital) and 70mm never took off in mainstream productions.<p>3D, for now, is here to stay. And it's not a war on resolution now, but frame rate. Many filmmakers would be more than happy to shoot/show at 2-perf, but 48fps than 4-perf at 24 fps, since 3D strobing, while panning, is reduced like that. 2K IS enough, for now - as majority of productions show. Convergence of film res and HDTV res at 2K~1080p is what drives 2K now, as is the available equipment (IMAX specific productions are an exception). Occasional shots are shot in 5K (like in Batman Dark Knight), but that's rare.<p>Eventually, resolution will take off to greater heights, but now it's step locked with 1080p - and that's the way things are.