The painting's already cracked.
4 seconds sound clip from the The Goonies movie soundboard.
You can hear this line at 00:14:55 in the Blu-ray version of the movie.
Quote context
[...]
- Mikey! Come here and make me feel like a woman. Come on, give me a nice, wet, lickery kiss.
- Now get out from there, you're ruining the painting!
- The painting's already cracked.
- What is all this neat stuff? The museum did some kind of... Where'd you get this? Right there.
- They did a show. It was a retropactum.
- That's what I said that. You always contradict me. I was right, I knew that.
[...]