The screening at the Christian Media Centre in Manzini had been organised by the Swaziland United Democratic Front. About 50 people had gathered to watch the documentary.
Armed police raided the dormitories at the Kwaluseni campus of the University of Swaziland (UNISWA), teargasing students and arresting and beating their leaders.
It followed peaceful complaints from students about the end-of-semester examinations that were taking place. Later, armed police stood guard outside examination halls as the UNISWA Administration attempted to hold the exams.
About 30 armed police broke up a church service held to mourn the death of Nelson Mandela. The service at the Lutheran Church in Manzini was organised by SUDF. It wanted to mourn Mandela and also to draw attention to the lack of democracy in Swaziland.
Two thirds of Swazi people want the kingdom to become a democracy, research published this month revealed. And, they want to choose their own leaders, 'through honest and open elections'.
They also strongly disapprove of allowing King Mswati, who rules Swaziland as an absolute monarch, to decide on everything in Swaziland. The research was conducted by Afrobarometer.
Three months after the national election in Swaziland took place the full final results have not been published.