Wittgenstein is concerned with meaning in natural language. In the movie, this slightly unusual sentence is used as an example where you might wonder about what the speaker means, or whether the sentence is meaningful at all. It is not meant as an amusement, other than maybe to make the lecture more memorable.
The real Wittgenstein did not use this specific example, as far as I can tell.
Wittgenstein is concerned with meaning in natural language. In the movie, this slightly unusual sentence is used as an example where you might wonder about what the speaker means, or whether the sentence is meaningful at all. It is not meant as an amusement, other than maybe to make the lecture more memorable.
The real Wittgenstein did not use this specific example, as far as I can tell.