Continuity mistake: In the story titled "Quebec Province 1975", child witch Lucy gets back at her bullying cousin Angela by shrinking her to the size of a mouse. Minutes later, Angela looks up, lifts her hands over her head and begs for mercy. Obviously Lucy is preparing to step on her. But we see Lucy lifting her foot off the floor several seconds after Angela starts begging.
Continuity mistake: When Dennis is sitting in his boat talking with Griselda and Mr.Fishfinger he gets covered in rubbish. Although he wipes most of it off there is spaghetti left on his hat and jacket. In the wide shots, though, he is clean. (00:08:20)
Continuity mistake: When the crew hauls the female orca aboard the boat, the harpoon line is wrapped around her entire body several times. When they cut the rope and drop her into the water, the line is wrapped only around her tail. When the male orca is pushing her at sea, the rope is again wrapped around her entire body.
Continuity mistake: When Pat is attacked on the stain glassed window near the start, she has blood on her right cheek. When she is then dropped and hung, the blood stains are different. (00:12:20 - 00:13:00)
Continuity mistake: Henry takes off the wrong shoe/sock to dry off.
Continuity mistake: In the opening scenes, when David is chiding Gail for grabbing him through the porthole of the wreck, his right hand is gloved, then ungloved, then regloved..all in the space of a few moments.
Continuity mistake: The senator is tossed out of the boat and consumed (with the exception of his head) by the monster, and yet the boat is full of blood.
Continuity mistake: When Bobby's watch turns 11 pm, he goes outside. His injury on his face is on his right side, but when he starts to go out into the desert, the next close-up of him, he is wounded on the left side of his face. Then, in the next shot of him after running and tripping, the wound is back on his right side. It is obvious the shot was reversed.
Continuity mistake: The spider lady and the vet go to the rancher's place to burn out the spider hill. While there, a bull runs out and collapses. While the spider lady is talking to the rancher's wife, her hands are by her side. When the camera switches to the wife's point of view, the spider lady's hands are in her coat pockets. When the view switches back, her hands are by her side again.