I just read this article here.
It's a bit old, but I'd never seen it before. I found it just now while googling "minecraft movie" (without the quotes). I was trying to see if there were any fake minecraft movies fans made (like fans often do about other games), and was shocked when I ran across the above mentioned CNet article. It appears that the guy who made Minecraft has decided, in light of the success of the other building block toy based movie "The Lego Movie", to go ahead and make a movie based on his Lego like game Minecraft. The studio to produce it will be Warner Brothers, according to the article.