Hold it down. Don't be too late.
6 seconds sound clip from the Bullitt (1968) movie soundboard.
You can hear this line at 00:14:29 in the Blu-ray version of the movie.
Quote context
[...]
- Sit down and relax, Ross. It's a long wait until Monday morning.
- We'd better get a fix on some food.
- What?
- I know Chalmers wants you to be happy. We'll do the best we can.
- Listen, you're not going. We're going to a horror movie.
- Hold it down. Don't be too late.
- Hello.
- Frank?
- What do you know about Ross?
- Chicago. It could be very big.
- He had access to all the records. He ran the wire services with his brother, Pete.
[...]