Officially rated PG-13 in the US
It's official! Kon-Tiki is rated PG-13 for a disturbing violent sequence in the US.
http://www.ropeofsilicon.com/movie/kon-tiki/
and to assure it is PG-13, here is the domestic US trailer: http://www.youtube.com/watch?v=i1Xf3toxvXM
Fear not the darkness, but welcome its embrace.