Interesting movie. It has a lot of curious points. If you check in the ImdB (the Internet Movie dataBase) you can find:

Trivia, Mistakes, and the best quotes.

[Froederick and Igor are exhuming a dead criminal]
Dr. Frederick Frankenstein: What a filthy job.
Igor: Could be worse.
Dr. Frederick Frankenstein: How?
Igor: Could be raining.
[it starts to pour]

Igor: Dr. Frankenstein…
Dr. Frederick Frankenstein: “Fronkensteen.”
Igor: You’re putting me on.
Dr. Frederick Frankenstein: No, it’s pronounced “Fronkensteen.”
Igor: Do you also say “Froaderick”?
Dr. Frederick Frankenstein: No… “Frederick.”
Igor: Well, why isn’t it “Froaderick Fronkensteen”?
Dr. Frederick Frankenstein: It isn’t; it’s “Frederick Fronkensteen.”
Igor: I see.
Dr. Frederick Frankenstein: You must be Igor.
[He pronounces it ee-gor]
Igor: No, it’s pronounced “eye-gor.”
Dr. Frederick Frankenstein: But they told me it was “ee-gor.”
Igor: Well, they were wrong then, weren’t they?

Inga: Werewolf!
Dr. Frederick Frankenstein: Werewolf?
Igor: There.
Dr. Frederick Frankenstein: What?
Igor: There, wolf. There, castle.
Dr. Frederick Frankenstein: Why are you talking that way?
Igor: I thought you wanted to.
Dr. Frederick Frankenstein: No, I don’t want to.
Igor: [shrugs] Suit yourself. I’m easy.

What were your favourites?