Which documentary released earlier, "...So Goes the Nation" or "March of the Penguins"?
March of the Penguins: March of the Penguins (French La Marche de l'empereur ; ] ) is a 2005 French feature-length nature documentary directed and co-written by Luc Jacquet, and co-produced by Bonne Pioche and the National Geographic Society.
i don't know