Continuity mistake: The dressing that is on the evil Dr Leticia Baines's forehead keeps changing. When she is first placed on Grogan's raft, the dressing is soaked with blood. In the next few scenes it just has a small patch of blood in the centre. After she swims to rescue the boy from his canoe, she gets on the raft and the dressing is dry. In the next two close-up shots the dressing is wet (with water) and then it is dry again.
Continuity mistake: In the scene where the kids at the Lost River Lake Resort are being attacked by piranha fish, Brogan's daughter Susie is hiding under a blue boat. She tries to lift the boat so she can use it to rescue her friends. It's too heavy for her, so she uses an inflatable boat instead. As she launches the inflatable off the jetty, you can see the blue boat in the water beside the jetty. Moments later, Brogan arrives and picks up the boat from where it was when she was hiding under it.
Maggie McKeown: That guard is still out there.
Paul Grogan: Fine, I need you to distract him.
Maggie McKeown: What for?
Paul Grogan: So I can get away.
Maggie McKeown: So you can get away? What about me?
Paul Grogan: Well suit yourself. Just come onto him, tell him what an admirer you are of Army or something like that.
Maggie McKeown: What if he's gay?
Paul Grogan: Then I'll go and distract him.