- That sounds familiar.
- That might be so, but this time it's true.

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

You can hear this line at 00:32:59 in the Blu-ray version of the movie.

Quote context

[...]

- The sky room's not open yet. There's no one to serve you.

- Fine.

- Why do I always give in? But let's not start another round right now. I'm out of training.

- It's a truce. Peace talk. So help me.

- They always start that way.

- Now just sit there and don't interrupt me.

- I've got a very big deal going on. Large chips. Carloads of them.

- That sounds familiar.

- That might be so, but this time it's true.

- Oh, good. I like to have rich friends.

- This is one rich friend who wants to spend a bundle on you.

- Gee, thanks.

- Okay, that's settled. On the morning of January the second, I'm gonna pick you up and we'll hop down to Rio so you pack a bag.

- You're serious. I honestly think you're serious.

- Of course I'm serious.

[...]