Revealing mistake: The boat's motor/engine was in the center-rear when Annie and Jodie brought it to the beach, but when Nic and the others were looking at the boat, the motor was off to the side (near the corner). The position of the motor varied, sometimes being in the corner when one of the riders would have obstructed its view. The appearance of the motor and which direction it was facing, the size of the tiller handle, and whether the water inlet port/propeller could be seen also varied. (00:48:57 - 00:49:47)
Revealing mistake: After the shark got Lisa, Annie climbed atop her overturned kayak and was lying with her stomach about mid-way on the kayak with her feet over the back sides. The kayak was not long enough for Annie to have her body on half of it; her legs did not look real (odd-shaped and disproportionately short/CGI). When Nic got to the kayak, Annie's toes were on top of the (overturned) kayak instead of her feet hanging over the sides. (00:36:21)
