I don't know what's eating you, and frankly, I don't care.

5 seconds sound clip from the The High and the Mighty (1954) movie soundboard.

You can hear this line at 01:03:19 in the DVD version of the movie.

Quote context

[...]

- I am.

- Well, I didn't hear you say you were pleased to meet me.

- Well, of course...

- Of course not!

- Look, this lady and I are having a quiet drink together.

- You seem to be disturbed about something. Perhaps we can talk later. Now, if you'll excuse...

- Oh, no! You don't just snap your fingers and send me on my way.

- I don't know what's eating you, and frankly, I don't care.

- Why don't you go back wherever you came from and sit down?

- Oh, now, now, honey.

- Well, this man's a nuisance.

- I've no doubt I'm a nuisance. And I must have been an even greater nuisance when you and my wife were scheming to avoid me in Honolulu so you could be alone.

[...]