The story- Like I said (complained) before, you can see how much of this movie will lurch back and forth at times due to 2 directors, and the screen treatment having touched 3 different sets of hands to make this happen. And, if anything, I could spend ALOT of time going after stuff that really derailed this movie at points:
The Cops- honestly, take them out of the movie. Why, after discovering that Scott's "lawyer" is really Hank Pym do they wait the 5-6 days to go after him in connection with Lang's break out from jail? And WHY head to Pym Tech and not Pym's house? Pym presumably has not been to Pymtech in some time, but staking it out after working hours on the one exact day that Pym was going to be there works out for them? Were they there daily/nightly hoping Hank would show up? Ugh, that is such a movie contrivance.
Lets not forge that when the helicopter takes off, those 2 cops have no reason to follow it (well, they could. I'll even allow it that they, as 2 super cops, decide to take off after a helicopter leaving the scene, even though it can go alot farther in a shorter time than they could possibly hope to chase). But they follow it...and even with a lone briefcase falling out of the helicopter-at night!-and as the copter goes to crash-they follow the brief case?! And wind up EXACTLY at the house where Lang and Cross are fighting it out? Ugh, such annoying contrivance. Terribly so.
The Villain- what, truly, was his purpose for villainy? The bathroom murder at the beginning of the movie-why do that? That was one seller that was truly against the Yellowjacket, and Cross was having none of that...even though another was going double how much anyone would offer in 1 week. Has Cross murdered many others up to that point? Was that murdered man going to narc to someone? For what purpose was he villainous there? If he has such a screw loose, why don't others see that in him and try to take the company from him, ala what happened to Hank? Also, in describing that the Pym particles to harm to an unshielded brain, wouldn't there be a lot of other techs as messed up? And for how long was Cross's brain being affected by Pym particles, especially considering he didn't shrink until the end of the film? Why did Cross come to Hank's house to kill him? Why kill him?! What makes a jealous man into a murderer? Why set up the 'elaborate cross and switch' kill scenario in the final unveil scene where Hank gets shot?
How did Cross even know about Scott Lang? What a clumsy reveal to just let it be known that Cross will know about Lang's past, and then therefore where his daughter lives so we can set up a final fight.
-Hope - Yes, Lilly did very well in her role...but it was a role that wasn't needed. Or, it was needed and used terribly. She was better than Scott in all things, she saved the day against trained Hydra goons, and is held back by the man (her father, and Cross) in the movie to be nothing but a 'yes sir' character. She only gets to grow as a character because the men in the film allow her. Also, we get 'Hope' and not Janet. Now, you could have had any other terrible thing happen to Hank as Ant-Man that would have caused him to retire and not want his Pym particles out there. Janet could still have been out there, somewhere, estranged, or hurt and lost, but we've lost a HUGE principle character of Marvel's past. Now, yes, actually, it's not like the women of 1960s/70s comics were any kind of hero. They were always too weak to use their powers, were overcome by the moment, or chided and chastised by men to be quiet. So, yes, Janet's true worth wasn't realized for decades. But I'd rather have a Janet than a non-entity Elseworlds Hope character.
Scott's...history- So...was he a Robin Hood character? He obviously stole from the rich to give back to the poor and taken. However, an electrical engineer does not make a computer hacker. Okay, okay, I can even explain that he broke past the company's security to get to their mainframe/main computer data areas. It still takes a bit more to return millions of dollar to hundreds or thousands of individuals. But, I'm cool with that happening. Really, I am.
However....he looks like a damned fine cat burglar too. Scaling walls, jamming security, intimate knowledge of bypass this or that...cool. So...was he a burglar before he did the Robin Hood act? Was he common criminal for some time before gaining the notoriety that got him in prison? I mean, he really knew how to make a fingerprint on the fly to bypass that lock, and then he recognized an old, archaic safe and knew how to crack it. Um...electrical engineer on the side of actually just being a thief? I mean, I have NO problem with him serving his time and being rehabilitated. That I believe! But don't paint him as a man who truly suffered to help others and went to prison for it. Presumably...he's been stealing before that? Don't leave me guessing! I can make up terrible stories about people!
Insects- it's not a (pure) Disney movie. They are bugs, they are not humans, making them cute or pets or whatever, blech. They are tools to be used. This is my own prerogative, and not necessarily a cut against the movie. However, more time was spent on the death of Anthony than the death of Alderaan.
This leads me a little the topic of a (minor) failing...and that's the cgi time to watch bugs flit and fly through an area some yards away from the viewer. Much of the cgi does spend time on insects moving, with Lang on one of them...but not that we could see. So, it just becomes a giant cut scene from a video game-which we, the viewer, knows to be so simulated that it's boring to see. Now, the tight focus on Scott flying around in the middle of the movie, far more interesting. That's what I wanted to see; the extreme view of the size; to see how huge and grand the world would look from that size. I wanted more of that, continually.
However, spending such ordinary time on watching bugs crawl is not nearly as cool or as fun as watching the Chitauri mega monster ship flying in or watching hundreds of Ultrons attack.