Oh, no, no, no. That can't be the one. Surely not. Why, that big lad must be close on to 20.

5 seconds sound clip from the The Sword in the Stone (1963) movie soundboard.

You can hear this line at 00:06:01.803 in the Blu-ray version of the movie.

Quote context

[...]

- All I know is that someone will be coming. Someone very important.

- Oh, pin feathers.

- Fate will direct him to me so that I in turn may guide him to his rightful place in the world.

- Huh. And you say he will arrive in half an hour? Ha. Well, we'll just see.

- And you will, Archimedes, you will.

- He'll be a boy. A small boy. Eleven, 12 years old, and a scrawny little fellow.

- Oh, no, no, no. That can't be the one. Surely not. Why, that big lad must be close on to 20.

- Ah! There he is. The scrawny little fellow, about 12.

- He's a regular little grasshopper. Look at him go.

- And where, where would you guess he is at this very moment?

- I am not guessing, Archimedes. I know where he is! Less than a mile from here, just beyond the forest.

[...]