- Don't you see you've created a monster?
- That doesn't matter.

4 seconds sound clip from the The Curse of Frankenstein movie soundboard.

You can hear this line at 00:51:21.617 in the Blu-ray version of the movie.

Quote context

[...]

- This is my creation.

- Yes, a criminal lunatic. It tried to kill you.

- That's the brain. When you attacked me, it was damaged. That makes it your fault. Your fault that it is not what I intended it to be.

- I can repair the brain.

- It's what I've done that counts. I've created a being.

- You promised to destroy it.

- When I've carried out my research.

- Don't you see you've created a monster?

- That doesn't matter.

- I shall operate on the brain tomorrow. It shouldn't take long.

- Very well, Victor. Goodbye.

- He's gone!

- He's what?

- I've searched the house. Heaven knows where he's got to. It's true, we must get out and find him!

- I'll go to the village for help.

- No, no. I'll send word to them

[...]