I love this movie. After seeing it for the Nth time yesterday, I realized that the ending is a bit abrupt. It's like in the space of 5-10 minutes, they're chased by raptors and then they hop on a chopper and it's over. I think they should have stuck in the parts from the novel, where the island gets nuked as they leave and also the part where they get detained by the Costa Rica government. Overall, a great movie, one of my favorites.