Movie was most probably rendered at 4K and 24 fps (double for 3D), and more realistically and more probably at 2K - with actual resolution depending on the aspe

Movie was most probably rendered at 4K and 24 fps (double for 3D), and more realistically and more probably at 2K - with actual resolution depending on the aspect ratio. Lots of smaller companies are using amazon directly or 3rd party render services built on top of amazon, but bigger aren't and won't. For example: http://www.zdnet.com/for-peter-jacksons-weta-digital-the-cloud-does-not-compute-7000027447/ http://www.zdnet.com/for-peter-jacksons-weta-digital-the-clo... Also, it's not really practical to use amazon-like service for production previews if you don't have a fat pipe running to it, so there will always be a need either for a small local farm or high end gpus or both.