Complex sentence: The school has a partnership with Kwadeda High School in South Africa who helped to produce another feature film called'The Opportunity' which was targeted at teenage audiences to make them aware of HIV, drugs and other problems that are high risk factors in South Africa.
Split into simpler sentences: The school has an partnership with "Kwadeda High School" in South Africa, who helped to produce another feature film called "The Opportunity". This film was targeted at teenage audiences, to make them aware of HIV, drugs and other problems, that are high risk factors in South Africa.