You know, I thought that exact same thing! I have enjoyed all the clips that have been released in the past couple weeks and I didn't want the entire movie to be given away, but I read some of these
early reviews and they just got me even more excited! It clearly seems there is much more depth and emotional in this tale of Carl and Russell, so I am sure you will be well entertained when you go to finally see the movie in the theater.
http://15.imagebam.com/dl.php?ID=35545613&sec=19b96f480cca1609c5f3e394bf3 81e1f (broken link)