In the beginning of the movie when Grant and the rest are flying over the island, the camera switches to an outside view. When this happens if you look quickly you can see the shadow of the helicopter in the clouds. It is very obvious. 2 other things to let rattle around in your brain. What ate the people in the boat at the beginning? They were to fare out at sea to be a spinosaur, and the terridactyls were caged up. Second, what did the terridactyls eat when they were caged up? There were no other dinos in there that I could tell. Weird... Overall though this was the best movie out of the bunch...