It's Thursday tomorrow, Jack.
2 seconds sound clip from the Shadowlands movie soundboard.
You can hear this line at 00:05:55.238 in the Blu-ray version of the movie.
Quote context
[...]
- I'm sure Rupert can spare one or two of his brood.
- Who says I don't know any children? Who?
- Warnie.
- My brother was a child once, Rupert. And, as unlikely as it may seem, so was I.
- It's Thursday tomorrow, Jack.
- The week's almost gone and I haven't done half my letters.
- You don't have to write back...
- Don't have to write back, I know. It only encourages them.
- Mr. C.S. Lewis thanks you for your letter, but has nothing whatsoever to say in reply.
- It's going to be quite a frost tonight, Warnie.
- Too many stars. Confuses me.
[...]