Help! A piece of piano works in a Godard's movie, what is it?

[ChaCha]

That piece of music can be found in this link:

+ YouTube Video

The first 40 seconds is the one I said. I also wonder if it's a piece often used in silent movies. But I don't know what it is, can anyone help? (is that Beethoven's?) Thank you in advance!

[draug]

I knw that music well - mainly because it features in a Baby Einstein video that my son has! He recognised it immediately!
I shall try to look it up.

[acciaccatura]

Beethoven: Die Wut über den verlorenen Groschen, op. 129.