Give yourself to the dark side. It is the only way you can save your friends.
— Darth Vader (James Earl Jones)
9 seconds sound clip from the Star Wars: Episode VI - Return of the Jedi movie soundboard.
You can hear this line at 01:51:59.655 in the Blu-ray version of the movie.
Quote context
[...]
- Sir.
- You cannot hide forever, Luke.
- Give yourself to the dark side. It is the only way you can save your friends.
- Yes. Your thoughts betray you. Your feelings for them are strong, especially for... sister.
- So, you have a twin sister. Your feelings have now betrayed her, too.
- Obi-Wan was wise to hide her from me.
- Now his failure is complete.
[...]