Hey guys not sure if any one noticed or anything or if its in the book coz i havent read it yet. =]

its the sceane where there all riding those things to the ministry to get to sirius and those glass balls near to the end of the movie. well its about how they got there. only harry and luna could see them coz they looked at death or sumthing and im pretty sure most of the others havent so how were the others supposed to have seen them???