Lucasfilm provided the poster image above following last night's airing of The Clone Wars: "The Zillo Beast" (S2 Ep. 18). If you can translate it without reference materials, you're a better fan than am I. Have no fear if you missed the episode as you'll be able to watch it on the main site by Monday. (click on the thumbnail above for the full view)
UPDATE: The one and only Jovial Jay was nice enough to provide poster translation for us and our friend Paul Bateman, of RalphMcQuarrie.com, brings our attention to the Godzilla poster which inspired the TCW one above. Again, click on the pic for the full view.
Zillo Beast poster translation:
"The Zillo Beast Escapes. Zillo Beast Loose on Corsucant
Will Chancellor Palpatine be able to extract the beast's secrets for military gain?
Can the Jedi save millions of innocents on Coruscant and contain the beast?
What will beacome of the ancient and fearsome creature?"