A secret website that won't be secret any more after you read this has been uncovered, featuring script pages, director and writer interviews, and more. Keep reading for the first stills, motion poster, and Julianne Moore video interview.
I haven't read the books, but here's what I'm getting from the site: Most of the movie takes place underground in District 13, Effie's role has been beefed up because everyone likes Elizabeth Banks (agreed!), Woody Harrelson still looks homeless, there's more Jeffrey Wright (hooray!), Philip Seymour Hoffman shows no indication that he was going to die soon, there are no more games (also hooray) and Katniss has more PTSD than ever before (if this movie helps people talk about the real deal and remove the stigma, that will be absolutely fantastic).
Still, it's hard to know much based on the first few pictures, because honestly, these characters have never been that visually interesting - and it's totally avoiding showing Jennifer Lawrence just yet.