'Cure ageing... or die trying.â So goes the rallying call of Bill Andrews, the American scientist searching for a solution to the great inevitable. A health-conscious runner, his approach contrasts sharply with the methods of his British counterpart Aubrey de Grey, a magnificently bearded, beer-swilling theoretical biologist. The science is fascinating, with complex theories spun out through onscreen animation. And the moral and social implications are certainly meaty. But it is the characters themselves who are the most compelling element of this film. As we spend time with these radical biologists the personal reasons for their quests emerge, with particularly touching scenes detailing their parental relationships. And, like many a high-functioning brainiac, they possess a cadre of peccadilloes, read morenone more so than de Grey, whose views on polyamory and al fresco lovemaking seamlessly flow into a philosophy that both men share â the absolute and defiant desire to live.