How the release of The Force Awakens will be a galaxy away from the opening of the original Star Wars

Then and now: teaser ads for Star Wars in 1977 and Star Wars Episode VII: The Force Awakens 

It's almost here. Star Wars Episode VII: The Force Awakens will be released next month. And it's being awaited with such rapt anticipation that there's a danger we'll have nothing left in reserve to welcome the Second Coming.

How different is all this from the release of the first Star Wars in 1977? Episode Nothing considers