Activist tried alongside Mandela in documentary at Cannes Half a century after the historic trial at which Nelson Mandela escaped the gallows, one of his fellow prisoners walks the Cannes' red carpet for the premiere of a documentary about those who stood with him in the dock. Andrew Mlangeni, a 92-year-old former apartheid activist was jailed with Mandela and others in Robben Island prison and threatened with the death penalty for resisting white minority rule. He spent 27 years in prison. IMAGES AND SOUNDBITES