How the Grinch Stole Christmas (2000)

Continuity mistake: After the Grinch unscrews the light bulb in the town Christmas tree, all the lights in the town go dark and the Grinch starts to take off in his sled-thing. When they show a close up of him, the lights are on. Then a few seconds later, the lights are off again.

Grinch: Hello!
Grinch's Echo: Hello! Hello! Hello!
Grinch: How are you?
Grinch's Echo: How are you? How are you? How are you?
Grinch: I asked you first.
Grinch's Echo: I asked you first. I asked you first. I asked you first.
Grinch: Oh, that's real mature. Saying exactly what I say.
Grinch's Echo: Exactly what I say. Exactly what I say. Exactly what I say.
Grinch: I'm an idiot.
Grinch's Echo: You're an idiot.
Grinch: [Whispering] All right. Fine. I'm not talking to you anymore. In fact, I'm going to whisper. So that by the time the sound of my voice reverberates off the walls and gets back to me, I won't be able to hear it.
Grinch's Echo: You're an idiot.

Trivia: Jim Carrey's makeup took 2 hours to put on and 1 hour to take off, every day for 92 days of filming.

Question: What kind of sleigh did the Grinch build?