I'm with you.

3 seconds sound clip from the The Fortune Cookie (1966) movie soundboard.

You can hear this line at 00:51:30 in the Blu-ray version of the movie.

Quote context

[...]

- It may be fair, but it's not enough. I had a slightly different figure in mind. Say, $500,000?

- $500,000? You're being grotesque.

- Let me tell you something, as one member of the Bar to another, if indeed you are a member of the Bar...

- Look, I don't want to be unreasonable. You say $2,000. I say $500,000. Tell you what. Let's split it down the middle.

- All right. If he wants a knockdown fight, we'll give it to him. And no compromise!

- I'm with you.

- Now, wait a minute. We can't go in front of a jury with this kind of evidence.

- We're not in front of a jury yet.

- Purkey, I want you to put Hinkle under surveillance.

- I was about to suggest that.

- He can't keep up this act much longer. Sooner or later he's bound to crack.

[...]