There's going to be a 48-page prequel comic to the game. With a possibility for a comic series after the game is released. (Seeing how Dark Horse is going to lose the Star Wars License, They probably want something else beside a plethora of Hellboy comics.)
It's free if the game is pre-ordered from Best Buy. (You also get a 1930's adventurer outfit skin.) Doesn't say if the comic will be available for purchase elsewhere, but I'm sure it will be. Along with the skin probably.
Gotta say, I'm pretty pumped for the game. Probably since that Game informer issue from a couple of years back. I might change my pre-order from amazon to best buy for the new skin and comic(I've got a $30 dollar discount thing, as opposed to the Ten on Amazon. But I do want that Final Hours magazine from Amazon. Hmmm.)
Also a few of the Ign Commenters keep mentioning the size of her boobs. (I don't know why I feel the need to mention that. I guess maybe I think those people are dumb. I dunno.)