- What about the Sands?
- Smooth and level.

7 seconds sound clip from the Ocean's 11 (1960) movie soundboard.

You can hear this line at 01:15:40 in the Blu-ray version of the movie.

Quote context

[...]

- The son of a gun, he never moves.

- A left hook'll keep him that way.

- Sam?

- As steady as down-country loving.

- Good boy.

- Louis, what about the Desert Inn?

- It'll be just as easy as riding a stuffed horse.

- How's that?

- It'll be just as easy...

- Just forget it.

- Flamingo is all set.

- What about the Sands?

- Smooth and level.

- Nobody carries identification until the job's done.

- Everybody got an inside job, you go back to work.

- The rest of us will wait outside, mingle with the crowd, stand in front of your respective casinos until Jimmy and I contact you.

- What are we going to do with ourselves till we hit? We have all today and tomorrow.

[...]