That's the business. Dog eat dog.
3 seconds sound clip from the The Front Page (1974) movie soundboard.
You can hear this line at 01:08:53 in the Blu-ray version of the movie.
Quote context
[...]
- Come on. You got better taste than that.
- Take that back, or I'll belt you one.
- You weren't screwing Mollie. You were trying to screw us.
- Like you did on that St. Valentine's Day Massacre.
- Yeah. Sending us to the wrong garage.
- That's the business. Dog eat dog.
- What're you trying to pull now?
- One last stunt to make us look stupid.
- Come on, give us the lowdown.
- You're on to something and we know it!
- You wouldn't hold out on your pals.
- You're not gonna scoop us this time.
- All right, fellas. I was lyin'. But I'm gonna level with you now.
[...]