No, it's not an alleosaurus. It's a spinosaurus. Has a ridge of spines along its back that look like they're covered in skin. You know that picture of tea leoni and the rest of the cast in the plane trying to back away from the dinosaur (whoes mouth you can see?) that's the spinosaurus. I was channel surfing saturday night, and I saw a short scene with it from the movie. It looks bad ass, much more "terrifying" then the trex (at least in the scene I saw, where they were trying to outrun it after seeing it the first time, one got under the fense, and the others ran along the other side..htey got to a hole in the fencing, and got through, just as it stick its head through snapping at them. Looked VERY cool.
I may have to see it...we'll see. Im waiting for the AT forum review force to let me know what they though