- How did you get in?
- The door was locked.
- It's a great trick.
- There's a secret passageway from the conservatory.

5 seconds sound clip from the Clue (1985) movie soundboard.

You can hear this line at 00:55:51.778 in the Blu-ray version of the movie.

Quote context

[...]

- You know you could've killed us. I could've been killed!

- I can't take any more scares.

(chandelier falling)

- But, look!

- Which one of you did it?

- We found him together.

- How did you get in?

- The door was locked.

- It's a great trick.

- There's a secret passageway from the conservatory.

- Is that the same gun?

- From the cupboard?

- But it was locked!

- No. It was unlocked.

- Unlocked?

- But yes. See for yourself.

- How did you know it was unlocked? How did you know that you could get at the gun?

- I didn't.

- I think I would break it open, but it was open already.

- A likely story.

[...]