Colin Farrell has opened up about his son James’ diagnosis with Angelman syndrome – and what he is now doing to help others with similar intellectual disabilities. RadarOnline.com can reveal Farrell, 48, discussed his 20-year-old son’s life with the rare genetic and neurological disorder during an in-depth interview set to release later this month. He said: “I want the world to be kind to James. I want the world to treat him with kindness and respect.” Angelman syndrome is a genetic disorder affecting the nervous system which results in delayed development, intellectual disability, speech impa…