Alex's position on the dock at the end of the movie changes several times.
When Jason is driving out of the harbor, the boat moves hundreds of meters between shots.
When Gabriela starts climbing up the ladder in the boat with Jason, a bridge is clearly visible that they are about to go under. When she reaches the top of the ladder, the bridge is no longer in front of them.
When Jason pulls up to Gabriela's house in his pickup truck with her in the passenger seat, his truck passes the gate in the fence. When he opens the door for her, they are even with the gate.
Gabriela pronounces 'shark' as 'charp.'
Grip visible when Jennifer is talking on a pay phone on the street corner.