 CONT: Young Sean Brody is shown wearing light green swim trunks in  the 4th of July sequence. He is seen sitting on the beach when the  shark attacks the boat in the pond and his brother Michael is nearly  killed. After Michael is dragged out of the water, there is a cut to  Sean sitting on the beach crying, but he is wearing dark blue  trunks. The shot was actually taken from the earlier beach scene  where Alex is killed on his raft.