Continuity mistake: The RV is seen travelling through open fields when Roger tells Frank that the girls are getting tired and want to stop, yet before Frank finds a secluded area to stay for the night, the RV is on a bridge over water.
Continuity mistake: When the starter waves the flag to start the speedway race, there are five bikers on the starting line and you can see the biker next to Roger's left is wearing a yellow crash helmet. When Roger takes the lead just seconds later, the driver next to him is now the one wearing a red crash helmet.
Continuity mistake: When the group enter the RV after they find Ginger has been killed, Roger crouches down in front of Kelly and you can see that she is sitting upwards on her seat, but in the very next shot Kelly is now being consoled by Alice.
Continuity mistake: When the RV leaves the area after Frank and Roger intruded on the witches' sacrificial ceremony, Frank says to Alice "We saw somebody murdered!" and you can see behind Alice, Kelly is putting on her dressing gown. But in a close-up of Alice in the next shot, Kelly is nowhere to be seen.
Continuity mistake: When Roger shoots the man who is trying to break into the back of the RV, you can see there are pieces of broken glass around the edge of the window, but when we see the man falling onto the grass in the next shot, the pieces have disappeared.
Continuity mistake: When Alice turns the handle to prevent the man from pouring gasoline into the vent of the RV, the man picks up both of his pouches. But when we see a close-up of the vent in the next shot, he is now holding one pouch.
Continuity mistake: When Roger, Kelly and Alice are tidying up the RV after the first showdown with the cult members, Alice picks up two packets of food from the table top. In the next shot, she is now holding a tin.
Continuity mistake: After Roger has finished burying Ginger, he puts his spade down by her grave. In the next shot, the spade is behind Roger, and in the shot after that, it is back by the grave again.
Continuity mistake: When Roger parks his bike after winning the race, there is initially nothing behind him, but when he takes his helmet off in the next shot, bike No. 39 has appeared.
Continuity mistake: In one shot of the speedway race at the beginning of the film, Roger and the other four bikers are bunched up together, but when Roger comes around the corner, the gap between them has increased.
Continuity mistake: When Roger says "Quack, quack" to Frank after his accident at the pond, Roger lowers the visor of his crash helmet down. In the next shot, the visor is back up, and when we see Roger driving off in the shot after that, it is back down again.
Continuity mistake: When the librarian tells Alice and Kelly that they can't take out the reference books from the library, Alice can be seen putting her hand in her handbag and Kelly is holding her handbag by her leg. In the next shot, Alice has her handbag back on her shoulder and Kelly is holding her handbag and putting her hand in it.
Continuity mistake: When Alice and Kelly are looking at the picture of the human sacrifice in the book in the library, Alice can be seen holding the book with two hands, but when we see the two in the next shot, she only has her right hand on the book.
Continuity mistake: When Kelly finds a note on the broken window at the back of the RV, she picks up the note and you can see that she is holding it with two fingers of her left hand behind it, but when we see the note in the next shot, Kelly is now holding it with her left thumb in the corner and the other four fingers behind the note.
Continuity mistake: When Roger shoots the man who is trying to break into the back of the RV during the chase sequence towards the end of the film, he turns around and walks back, but when Alice is trying to stop the man from pouring gasoline into the RV, Roger is at the back of the vehicle and walks back a second time.
Continuity mistake: When Frank and Roger are looking at Roger's bike before they go on vacation, Frank starts to take off his sunglasses, but as the camera angle changes the glasses are over his eyes and he takes them off again.
Continuity mistake: When Roger sees that a tyre has been vandalised on one of the motorbikes on the back of the RV, he calls for Frank. Roger then puts one hand on the tyre, but in the next shot he has both hands on the tyre.
Continuity mistake: When Frank and Roger on their bikes stop to discuss their race plans, Roger raises the visor on his helmet. When Frank drives off, you can see the visor is down, and in the next shot Roger closes his visor for a second time.
Continuity mistake: When Frank is showing Roger the bathroom in the RV, Roger's shirt is buttoned, but when he turns around his shirt is unbuttoned.
Continuity mistake: When Frank and Roger are racing each other on their bikes, Frank lands in the water. Roger then turns his bike around and stops at the edge of the lake, but in the next shot he is slowing down and talking to Frank.
