Celebrated artist Bridget Riley has just opened a new show in London at the age of 90. In an exclusive interview with BBC Newsnight, she talks to Kirsty Wark. Show more

Celebrated artist Bridget Riley talks to Kirsty Wark about her childhood in Cornwall and the impact of war on her art, and on learning from her own mistakes. Show more

With exclusive behind-the-scenes access, seldom-seen footage from the archives and a rare interview with Kirsty Wark, this is the story of a true visionary of British art. Show more