I didn't really have five problems. Overall it's a enjoyable 7.5-8/10 type of film.
I think what could have improved the film would have been a visible Sith to mentor Kylo Ren. Like wouldn't that have been more interesting? The "rule of 2" was so stupid anyway, why have a "dark Obi-Wan" type figure, a philosopher in the Force who is a Dark Jedi training Kylo and insisting that he is struggling with the light side. I think that would have been a neat idea. Snoke can remain as the higher up. I would like to have seen more about the philosophy of the Force but from the Dark POV. I think it would ground Kylo Ren's motives moreso too other than "oh hey it's another bratty Skywalker/Solo with authority issues".
Then maybe Snoke betrays this Sith master character at the end of TFA and has him killed. That would be an interesting idea I think.
I think I would staged the Luke scene a little differently too, it was a bit awkward with him just standing there on a clear day ... I'd have had him shrouded in mist with his figure visible, Rey holds out the lightsaber, Luke walks out of the mist taking off his hood and the last shot is him talking the lightsaber and holding it in his hands, as if realizing his old power. That would've been pretty cool.
I think too they needed to maybe "show" the Force calling out to Rey more often. Like even a small rumble of bass in the soundtrack as she's piloting the ship or doing the mind trick, I think some audience members needed this spelled out for them very directly and JJ played the "well maybe Finn is the Jedi not Rey!" card too hard. It's fairly obvious half-way through the movie she's going to be the Jedi, so trying to keep it under wraps doesn't really work dramatically.
I wouldn't have minded maybe a QUICK blurb about the politics of the galaxy (as what is the Resistance to the Republic, how powerful is the First Order, etc.) but I can understand after the prequels why they were terrified of getting bogged down in that.
I think also the movie maybe should have stayed with Rey a little more on Jakku at the beginning. No offence to Finn, but if he isn't the central character arc (and he isn't), then I think his role could've been trimmed a bit in the beginning to focus more on Rey's life. It was really interested to see her scavenge through deserted Star Destroyers and she lives alone in and shelled out Imperial Walker. This IS interesting! It creates empathy for your lead character! Don't cut away so quickly. Let the story breathe a little here. This character concept and the visuals it evokes are fantastic and emotional. Stay with her! We should feel her lonliness. That was a great idea, I think they cut it too short.







