Our latest Guardian documentary, Love Immortal, is an extraordinary love story told with humour and tenderness about how we deal with loss, our own mortality and the prospect of eternal life. Alan has promised his wife, Sylvia, that they will be cryogenically preserved upon death and reunited in the future. However, when Sylvia dies all too soon, Alan, now 87, falls in love with another woman and is forced to reconsider his future plans. Watch now: theguardian.com/love-immortal | The Guardian