Проверьте правильность текста....

Dance Open is a International Ballet Festival in the St Petersburg. The
Festival has been in existence since 2001 and takes place on the last
week in November .Dance Open was founded famous ballerina Ekaterina
Galanova and choreographer Vasily Medvedev. In the festival were
attended: young students, famous Russian teachers and world-class
dancers from the ten countries. In 2010 was created scientific-practical
annual international conference - Dance Open.
Festival Considered
one of the top dance events in Europe today. The festival becomes more
popular and many talents and famous people want to take part on this
festival.