I posted this elsewhere but thought it was interesting enough to put here too. This article talks about how the Hobbit has big issues with the (rather stupid I think) choices Jackson made about camera and frame rates. They used Promists to help knock down the crappy red footage. I love it.
http://www.engadget.com/2013/12/17/hfr-the-desolation-of-smaug/?ncid=txtlnkusaolp00000589
http://www.engadget.com/2013/12/17/hfr-the-desolation-of-smaug/?ncid=txtlnkusaolp00000589