i thought the problem was they tried to hard to make it a star wars film, it was like they had a check list of things which have to be in it
space battle
chase scene
light sabre fight
funny bits
teaching session
and then they thought, lets put a few of each of them in to make the fans happy, and then thought of a way to link the set pieces
individually all the standard bits were good, but the stuff to hold them together in some parts was nonsense, which for me stopped me enjoying it, and then it dragged and dragged, to the point I just wanted it to end