To promote World Expo 2010 Shanghai China more widely and efficiently, a new version of Expo advertising video went into production on September 17 at the Expo site under construction. The Documentary Channel of Shanghai Media Group (SMG) has been entrusted by the Bureau of Shanghai World Expo Coordination to be in charge of filming. Sources report that there are two versions of the video, one of five minutes and the other 30 seconds, to be displayed on different occasions.