Three stories — one each from the past, present, and future — about men in pursuit of eternity with their love. A conquistador in Mayan country searches for the tree of life to free his captive queen; a medical researcher, working with various trees, looks for a cure that will save his dying wife; a space traveler, traveling with an aged tree encapsulated within a bubble, moves toward a dying star that's wrapped in a nebula; he seeks eternity with his love. The stories intersect and parallel; the quests fail and succeed.
The score from Clint Mansell (peformed by Kronos Quartet and Mogwai) is a haunting and emotional piece of work that'll leave you with even more of an impact than the film initially will. It's the driving force that resonates this film with so many people and it's constant through line that connects the powerful story of love that transcends time. It is arguably one of the best film scores ever written.