No, Headmaster, it's easy to see that there are only noughts.

5 seconds sound clip from the Mr. Topaze (1961) movie soundboard.

You can hear this line at 00:35:19 in the Blu-ray version of the movie.

Quote context

[...]

- It is for these reasons that I put it to you that I will not be surprised if there has been a slight mistake.

- But the marks that I have in this book are the marks that I gave to the boy.

- Don't you see that that's impossible?

- English, nought. Arithmetic, nought. History, a quarter. Deportment, nought.

- Come, please look more closely. Look more closely. Can't you see any mistake?

- No, Headmaster, it's easy to see that there are only noughts.

- However, I will check with my notebook here exactly where I put...

- Listen to me, I won't blame you if you've made a mistake. No. Errare humanum est, perseverare diabolicum.

- Be so good as to recalculate the boy's marks.

- Yes, well, it won't take me a moment. I'll...

[...]