It's a tough one. I think you guys are a little late. You could have sold it in November 2009 for $600-800. Now, I don't know. The main problem is that it looks exactly like the advance, and the lenticular effect is not that great. The main problem with lenticulars is that most of them drop value by half a few months after the movie's release. Very few hold their values. I'd think that the Jurassic Park: Lost World is still worth something, mainly because the Dino design is cool, the NBC is probably the most expensive of them all, but the rest, like Spidey, Men in Black 2, The Day After Tomorrow, Lilo and Stich, Monster House, and unfortunately Avatar, has dropped considerably. I may be wrong, but $300-400 seems to be the most right now. If you guys want to try your luck, I'll put it on Ebay at a $600 starting price and see if anyone bites.
T