Long-term thinking

Manoel de Oliveira has made his film debut at Cannes , aged 101. The Strange Case of Angelica storyline was tweaked to include global warming, the economic crisis and environmental pollution, 64 years after its conception. He is already planning another film. Earlier this month, Chinese student Chen Su Jin Miao finished building his own "Lamborghini" – seven years after he started . Sadly, he may never be allowed to drive it. Even more impressively, in April DIY sailor Owen Warboys finally took his boat Wight Dolphin to the seas for the first time, after 28 years of construction in his mother's garden . What is the longest you have spent creating your own masterpiece?