Pangea day seems like a brilliant and powerful idea. here is some info from their website…
Pangea Day is a global event bringing the world together through film. Why? In a world where people are often divided by borders, difference, and conflict, it's easy to lose sight of what we all have in common. Pangea Day seeks to overcome that – to help people see themselves in others – through the power of film. Starting at 18:00 GMT on May 10, 2008, locations in Cairo, Kigali, London, Los Angeles, Mumbai, and Rio de Janeiro will be linked via satellite for a live program of powerful films, live music, and visionary speakers. The entire program will be broadcast – in seven languages – to millions of people worldwide through the internet, television, and mobile phones. The 24 short films to be featured have been selected from an international competition that generated more than 2,500 submissions from over one hundred countries. The films were chosen based on their ability to inspire, transform, and allow us see the world through another person's eyes.
Checkout Pangeaday's videos on Youtube. They have some national anthems sung by people from a different country. Here is Indian national anthem sung by Kenyans. It is very nicely done.