I saw again this evening with my BF. Movie still holds up really good, audience really liked it. Don't think my opinion of it really changed, other than maybe picking up some plot stuff I missed the first time around. (Like the X-Ray machine being what destabilized the alien powersource, making it explosive.)
I noticed in a few scenes they put Tomei in... oversized "old aunt glasses," presumably to make her "seem older"... yeah doesn't work. She's still Marisa Tomei.
In the Iron Man movies Happy always struck me as just being kind of a naive and sort of in his "own world" of self-superiority but not really having the weight to back it up. He still seemed to have something of a "soft spot" to him, but here he seemed to be a bit too much of an ass, his contempt and dismissal of Peter just seemed awkward and misplaced especially since Tony put Peter under his care you'd think Happy would've taken it more seriously and not have been so dismissive of Peter.
And, granted, Peter was trying to take on more than he could probably handle given his age and experience but given the way Happy and Tony were dismissing him and ignoring him, who can blame him? He sees this stuff happening, thinks something is up, he reports it and doesn't hear anything back. How does he know Happy and Tony is handing this off for it to be handled by law enforcement? He got NO feedback and for all he knows they're blowing him off again so he takes it upon himself to deal with what he sees as being a big, potential, problem.
The incident on the ferry could have been avoided by Tony or Happy making a simple call and saying, "Hey, we looked into this stuff you said about the stolen alien technology and the pending exchange on the Long Island Ferry so we're sending in the FBI to handle it. Good eye, Peter!"
But, no, Peter passes this information along and he gets nothing back so he thinks he's being blown off and is going to take care of things himself.
And what happened on the ferry was hardly 100% Peter's fault, things could have just as easily have gone fine if the weapon didn't get out of control and things easily could've been just as bad if not worse if only the FBI were there to handle things and The Vulture came out and there were no "enhanced" people there to fight him, after all they were there and it seemed like the exchange and everything was going to happen uninterrupted.
Why did the cloak on Tony's transport plane suck so much? The cloak we've seen the Quinjets and the Hellicarrier (as well as The Bus) all have been nearly perfect cloaks akin to what's seen in Trek. But the cloak on this plane seemed to be almost more obvious than the plane just being visible and even seemed to project things on the underbody of the plane onto the the top of it sort of making the cloak useless. Come on, Tony! Your tech game is off in this movie, a weak-ass cloak on your cargo plane, the Spider-man suit was hacked into and disabled by a teenager and you allowed for the transportation of sensitive materials without an escort by either yourself or the Iron Legion.
(Also on the "Training Wheels" protocol on the suit, again, this seems like an area where giving Peter more information would have helped. To TELL him the suit will grow more advanced the more he uses it and the more he learns rather than just handing him the thing and letting him go wild.)
All me grumbling and nitpicking, but overall still a very good movie and take on Spider-Man.