We asked three centenarians what their most valuable life lessons were, and also their regrets.Click here to subscribe to LifeHunters: Executive producer: LifeHuntersProducer: Marcel IJzermanUK Producer: Anna SnowballDirector: Chris de KrijgerScript: Marcel IJzerman / Chris de KrijgerCamera: Marcel IJzermanSound recording: Tjeerd MelchersInterviews: Anna SnowballEditor: Marcel IJzermanSound engineering: Tjeerd MelchersMusic: Federico DurandThanks to: The Birchwood Grange, Cliff Crozier, John Denerley, Emelia Harper, Leslie Masters, Ruby Martin.