I have to work late tonight.

4 seconds sound clip from the Batman & Mr. Freeze: SubZero movie soundboard.

You can hear this line at 00:16:51 in the Blu-ray version of the movie.

Quote context

[...]

- Your secretary wouldn't give me an appointment until next September.

- Now, is that any way to treat an old colleague?

- What do you want?

- I've got a patient who needs you.

- Leaving so soon?

- I have to work late tonight.

- I've heard that before.

- I'll call you tomorrow, Ronnie. I promise.

- I've heard that one, too.

- We're gonna dance some more.

[...]