Ah, you're wastin' your time. They can't track us over rock.
7 seconds sound clip from the Butch Cassidy and the Sundance Kid movie soundboard.
You can hear this line at 00:51:23 in the Blu-ray version of the movie.
Quote context
[...]
- I'm sorry. I'm gettin' mean in my old age.
- Come on! Shut me up, Sundance.
- Ah, you're wastin' your time. They can't track us over rock.
- They're beginnin' to get on my nerves. Who are those guys?
- You remember the time you and me and Etta went to Denver that summer for a vacation?
- I'm glad you brought that up. That's an important topic, considerin' our situation.
[...]