I've been watching you all night.
3 seconds sound clip from the Casino (1995) movie soundboard.
You can hear this line at 00:23:20 in the Blu-ray version of the movie.
Quote context
[...]
- What do you mean what's the matter? I made a lot of money for you, I want my cut.
- What money? I've seen you stealing from me.
- What money? Look at the stack of chips.
- Don't give me that shit. I want my half.
- I've been watching you all night.
- Don't give me that shit I want my money.
- Your bag is full of fucking chips.
- I didn't steal anything from you. Get lost!
[...]