So the woman in this video playing the role of Rosanna, also played a dance role in a famous movie about dancing. In the movie she was the antagonist to the female star of this movie. Also in this music video, one of the male supporting dancers in this music video was also in the same movie about dancing. However he was the star.

Without looking or googling on your honor. What is the name of the movie and who is the actor playing a bit role in this music video as a supporting male dancer?

https://www.youtube.com/watch?v=qmOLtTGvsbM