The Hound of the Baskervilles

Continuity mistake: After Sir Hugo has stabbed the girl on the moor, no blood is visible on the knife he used, however after he drops it (because he is attacked by a hound) blood has now appeared on it.

Doctor Richard Mortimer: But this is remarkable.
Sherlock Holmes: Superficial. There is nothing remarkable about using one's eyes.

Sherlock Holmes: There is more evil around us here than I have ever encountered before.

Sherlock Holmes: You had better be off. You mustn't be late for your peasant friends... I hope you enjoy their rabbit pie.

More quotes from The Hound of the Baskervilles