Syrtaki Dance Movie?

Sirtaki or syrtaki is a popular dance of Greek origin, choreographed by Giorgos Provias for the 1964 movie Zorba the Greek. It is not a traditional Greek folkdance, but a mixture of slow and fast versions of the hasapiko dance. The dance and the music are also called Zorbá's dance.
How is the Syrtaki Dance portrayed in the movie?

I've been told Zorba the Greek was a good movie.
Here are students of the Hellenic Society perform a syrtaki dance at Imperial College's International Night 1993:

The performance of the Syrtaki Dance is in London, UK.