Have you checked your pants?
3 seconds sound clip from the The Amityville Horror (1979) movie soundboard.
You can hear this line at 00:45:57 in the Blu-ray version of the movie.
Quote context
[...]
- Am I supposed to give Amy an aspirin or anything?
- Just give her one before bed, okay?
- The money for the caterer, $1,500! I put it in... I put it in this pocket!
- Well, it must've fallen out, come on now.
- We'll just find it. I'll look under here.
- Have you checked your pants?
- Now, calm down, Jimmy, calm down. It can't have gotten up and walked away.
- Well, if you had it here, it's gotta be here.
- What am I gonna do? Oh, I can't believe it, God, I can't believe it!
[...]