Not much to say but I love these teases. This one seems to be the most full of juicy information about the inner workings of the 3D process, as well as confirmation that the movies are indeed captured at 5K resolution. A total of 48 Red Epic cameras, all with names. Also good to see Elijah Wood and Hugo Weaving back in their parts as Frodo and Elrond, although some of that was in video #2.
For more on the new 48 fps and 60 fps high speed frame rate technique, check out my article over at About-Interface.
In case you missed the other production diaries, here is 1-3, here they are, right after the jump.