- You mustn't frighten yourself like this all the time.
- Why not?
- You'll make yourself sick.

5 seconds sound clip from the James and the Giant Peach (1996) movie soundboard.

You can hear this line at 00:36:24.027 in the Blu-ray version of the movie.

Quote context

[...]

- I say three cheers for James. Hip-hip. Hooray! Hip-hip. Hooray! Hip-hip. Hooray!

- New York, here we come!

- Whoever you are, keep away from me! Keep away!

- Mr. Earthworm, it's me!

- Oh, James! Oh, thank goodness.

- You mustn't frighten yourself like this all the time.

- Why not?

- You'll make yourself sick.

- When I had a problem, my mum and dad would tell me to look at it another way.

- How?

- First I was bird bait. Then I was shark bait.

- I suppose.

- Or you could say you gave us wings to fly and defeated a giant shark single-handedly.

- No-handedly.

- Exactly. You're a hero.

- I am? I'm Wonder Worm!

- You are.

[...]