If you do anything else to threaten Thea, General... I'll forget that we've been friends.
6 seconds sound clip from the Isle of the Dead (1945) movie soundboard.
You can hear this line at 00:50:28.772 in the Blu-ray version of the movie.
Quote context
[...]
- There are other men here, sane men. They will know how to deal with you.
- I warn you, General. Leave Thea alone.
- What must be done, I will do.
- Does that include smashing the only boat on the island?
- I told you that no one could leave.
- If you do anything else to threaten Thea, General... I'll forget that we've been friends.
- Thea. Thea, you must help me.
- You did call them, didn't you, Kyra?
- I told you, I knocked. The girl said her mistress wasn't well.
- Maybe you can make up a tray after dinner. Thea will probably be hungry.
- I asked. The girl said she wanted nothing.
[...]