Continuity mistake: When Carly is taken into the basement under the gas station, her kidnapper turns the radio on when they enter the room and he locks the door when he leaves, leaving the radio on. When Nick runs inside the gas station, the door is unlocked and the radio is off.
Continuity mistake: When Carly, Nick and Bo are walking up against Bo's house, Carly's hands change from being crossed behind her back to hanging down between the shots.
Audio problem: When Vincent is trying to stab Paige in the warehouse, he slashes her foot and she falls down. As he's trying to stab her through the metal grate, she's screaming but her mouth is closed.
Other mistake: Covering the victims' bodies with layers of wax would make the figures look unnatural large. And the machine that secured the victims in seated position as it sprays then with layers of hot wax would mean the figures would have to stay in seated positions when completed.
Factual error: Wax doesn't burn, even when exposed to flame. Wax also will not conduct heat. The ending shows the House of Wax melting and burning to the ground, as if the heat is spread throughout the house. In actuality, only the small hole near the fire will melt; the rest of the house would be unharmed.
Continuity mistake: When Wade and Carly first enter the church and think they have 'interrupted' the funeral, we see a close up of the priest's face. He looks like a real person just standing very still. Later in the film when there are more prolonged shots of the priest (when Carly hides under his clothes from Bo), you can see he is now a lot more 'waxy' and fake.
Answer: I don't think so. Wade and Dalton aren't exactly uncommon names and references to other movies are usually more obvious than two characters sharing names.
Andreas[DK]