Well, don't you understand that if your crops fail this year, next year you're going to have to have another blood sacrifice?
10 seconds sound clip from the The Wicker Man (1973) movie soundboard.
You can hear this line at 01:24:56 in the Blu-ray version of the movie.
Quote context
[...]
- Your crops failed because your strains failed.
- Fruit is not meant to be grown on these islands. It's against nature.
- Don't you see that killing me is not going to bring back your apples?
- Summerisle, you know it won't. Go on, man. Tell them. Tell them it won't!
- And next year, no one less than the king of Summerisle himself will do.
- If the crops fail, Summerisle, next year your people will kill you on May Day.
- The sacrifice of the willing king, like virgin fool, will be accepted.
- But don't you see, I'll be missed? They'll come looking for me!
[...]