Not sure how many scenes are longer, or why, but in the published script (I show it on the previous page) there are some scenes that are more than what is on my CD version.
That's why the script is so fun for me to read. It's the most comprehensive telling of the original story. One scene that comes to mind right away is the chapter where Leia is back visiting her father on Alderaan. There is a lot more of her spending time alone and contemplating the dangers of her situation.