I rented the Iron Man 2 movie from iTunes. Its in my iTunes library under rentals. I can't figure out how to get it on my iPad. When I do a Sync that doesn't load it to the iPad. What am I doing wrong. Should it show up under Videos on the Ipad. Another question should I rent the HD version ($4.99) or regular version ($3.99) if I only will be watching on the iPad.