Watch this 'Jennifer's Body' behind-the-scenes clip

I'm not quite sure what to make of Karyn Kusama's "Jennifer's Body," an upcoming horror flick written by "Juno" Oscar winner Diablo Cody. Sure, it's got Megan Fox playing a freak possessed by a demon that causes her to eat boys, but judging only by the footage I've seen so far, this one could as well tank big time.

For now though, let's enjoy the promotional material we get to see for the horror flick, which opens Sept. 18, 2009. After the jump, I invite you to check out a short behind-the-scenes clip, in which Fox, co-star Amanda Seyfried, Cody and Kusama briefly talk story and characters. I think you'll also stumble across a tiny bit of new footage.

Seyfried, by the way, plays Jennifer's friend and tries to put an end to the horror show. Johnny Simmons, Adam Brody, J.K. Simmons, Amy Sedaris and Cynthia Stevenson round out the cast.

If this is not enough, I've also included a brand-new photo (via MTV) of Fox lighting up her tongue (a scene you also get to see in the clip). Scroll down and enjoy a hungry Megan Fox going nuts.