I downloaded a movie to my ipod from the itunes store on the actual ipod and i watched it about halfway through. Then, the rest of the movie wouldnt load and i went into the itunes store under dowloads and it said "download error. tap to retry" so i tapped it and after about 3 seconds a notification came up saying "Unable to download movie" and two buttons "done" and "retry" so i clicked retry and the same thing came up. ive tried this multiple times and made sure my connection to the internet was okay and it is, but the movie still will not download, help??? whats going on? how do i fix it?