"Maybe they're up there. Maybe not. Maybe." - Rhoda, on whether Earth 2 has other versions of themselves.
Another Earth is the 2011 debut feature film from director Mike Cahill, starring his muse, Brit Marling. The film is about a second Earth appearing in the sky, the possibility of traveling there, and about a dozen other side threads, including guilt and love and all that other jazz. This indie film came out the same year that Melancholia, by Lars von Trier came out, another film about another alternate Earth, only in von Trier's film, it ends a bit more tragically. A bit. Oh, and by the by, Melancholia was featured as a Heavenly Body of the Week back in Week #24.
That's it gang. See ya 'round the web.