Complex sentence: The first festival, thought to be a one-off, was held in 2010 on the first anniversary of the December 30th pro-government demonstration and approximately twenty works were screened simultaneously at 30 points of the country.
Split into simpler sentences: The first festival, thought to be a one-off, was held in 2010 on the first anniversary of the December 30th pro-government demonstration. Just twenty works were screened simultaneously at 30 points of the country.