The surreal "Upstream Color" is so many things at once science-fiction saga, romantic drama, living thought experiment that it may require multiple viewings to parse through the messages, visual clues and subtle shadings.
On first viewing, though, it's probably better to let it wash over you in its trippy glory.
The story begins with Kris (Amy Seimetz), who is kidnapped and fed a grubworm with mind-control properties. The worm is wielded by an unseen identity thief (Thiago Martins) who uses it to hypnotize Kris into emptying her bank accounts. Later, the thief removes the worm, but by then Kris' life is ruined having lost her money, her apartment and her job as a film editor. The grub is then implanted in a pig, which is tended by a mysterious farmer (Andrew Sensenig) who also collects audio samples.