Dr Njoki Ngumi - artist and film-maker

Zeinab Badawi is in Nairobi to talk to one of Kenya's most groundbreaking cultural figures, Dr Njoki Ngumi. She abandoned a promising career in medicine to help set up an arts collective and believes that creative endeavours can help transform societies. One of the collective's films exploring homosexuality was banned in Kenya, where gay sex is a crime. So how far is Njoki Ngumi shifting opinions?