Continuity mistake: When Erica eats the cat the telephone is on its side, then the right way up.
Continuity mistake: When the man puts jelly down his wife's dress during the food fight, Jenny Grubb's arm is not on the table. In the next scene, her arm is resting on the table, but in the scene after that, her arm is back in its normal position.
Continuity mistake: When the bad guy winds up to throw the dynamite into the cantina, McNally puts a round through his brisket, and he falls to the ground clutching his belly. He weakly tosses the dynamite, then stumbles back behind the adobe, now clutching his right shoulder.
Continuity mistake: The footage of Dracula impaled on a giant golden crucifix at the end of 'Dracula Has Risen From The Grave' is re-cut for the pre-credit sequence of this film. However, when the second film continues, the golden crucifix is missing in the background, behind Dracula's powdered blood and collapsing cloak, creating a continuity error with perhaps an unusual reason for happening. Hammer props department may have rid themselves of the crucifix between films shot a year apart.
Continuity mistake: In the scene at the hockey game where Oliver talks to Jenny while he's in the penalty box, he wears number 7. When the shot cuts to the action on the ice during this conversation, number 7 is in the game sliding on his stomach, and then back in the penalty box talking to Jenny. (00:04:10)
Continuity mistake: The wooden box (holding the "silver bullets" that the sheriff is handing out) has no markings on the side from a distance, but when the camera zooms in to see the ammo, you can see heavy black marks like someone crossed out a name and address, and you can also see a paper label partially torn off the box with writing blacked out. Then when the camera zooms back again, and the deputy picks up the box, the side of the wooden box is blank again. (01:21:20)