Thursday, Faceboook announced that it had reached its billion-user milestone, and to celebrate, it has launched a poetic film from its agency of record, Wieden & Kennedy in Portland, Ore. Directed by byAlejandro Gonzalez Inarritu of Anonymous Content, the film opens with a series of artful, emotional vignettes of people sitting and interacting on chairs -- before moving on to other objects and events through which folks come together, such as a doorbell, airplanes, bridges or a basketball game. The point being, that all these things exist, perhaps, to remind us that we're not alone. Read more about the ad and how it was made in behind the work.