The latest news on the production of The Hobbit films is Peter Jackson’s fourth video blog post, in which he discusses shooting in 3-D; we see Gandalf, Bilibo, Elrond, Frodo, and a group of dwarves; and we see illustrators Alan Lee and John Howe doing 3-D concept art as preproduction for the 3-D film (for the previous video blog, see “Peter Jackson’s ‘Hobbit’ Production Blog #3”).