I read about vampires years ago. I always thought it was the product of an over-fertile imagination. Would that it were, Mr. Kent.
10 seconds sound clip from the Dracula: Prince of Darkness movie soundboard.
You can hear this line at 01:02:45.840 in the Blu-ray version of the movie.
Quote context
[...]
- Dear Charles, let me kiss you.
- I warned you not to go anywhere near the castle, Mr. Kent.
- I thought we'd seen the last of him. The last record we have of him is... Here it is. Ten years ago.
- Not kill. He is already dead. He is an undead, Mr. Kent. He can be destroyed, but not killed.
[...]