Peter Fonda talks Dennis Hopper as exhibition opens
2 July 2014 Last updated at 22:25 BST
Dennis Hopper was best known as a Hollywood actor and director, but the star was also a talented photographer - capturing many of the prominent faces of the Sixties.
His Easy Rider co-star Peter Fonda is in London where Hopper's photographs and films are being celebrated this summer at the Royal Academy and the British Film Institute.
He spoke to the BBC's arts editor Will Gompertz about their rather tricky relationship.