It was a masterpiece of crap known as "The Fountain". I'd put in a spoiler alert, but spoilers may convince people not to watch this shit-fest.
So, it has these three plot-lines that it switches back and forth between. The first is this Spanish Knight sent on a quest by his queen to find the tree of eternal life (From the Bible). And he has to fight weird shit that makes no sense.
Second is this doctor, reading a book written by his sick and dying wife about the Spanish Knight's quest, told from the perspective of the Queen, who realistically has no idea what's happening to the knight.
It is worth mentioning that the queen and the knight are an item...
The third is what really kills this story... It's this dude... he's bald and wearing a white robe. He's in this bubble with a tree. Every so often, he'll stop muttering in the corner and go over to the tree and tell it "We're almost there... We're almost there..." and he'll rub the tree... and kiss the tree... and have sex with the tree... and peel off some of the tree's bark and eat it...
So how do these stories end?
I forget the doctor, other than his wife dies... I think he just kind of walks off into the background. No one cares about him.
The guy in the bubble has it pretty bad. His tree dies... Then the bubble explodes...
But the Knight has the worst ending. He kills this dude guarding the tree of life. All his friends are dead. He's the only one who made it to find the tree of life. One would think that you'd eat the tree's fruit to live forever. Nope. He stabs it with a knife and drinks the sap...
...
...Then he explodes...
...
...Then he turns into flowers...
