More coherent, less spoilery thoughts on Jurassic World below.
It's not a Jurassic Park film. The series have always been adventure movies, this is straight up action. It isn't a change for the better. It's full of stock characters, with the prudish love interest who secretly loves the rugged, quipping action hero and the comic relief nerd battling against the amoral scientist and bullheaded military man. Coming from a series previously lead by a grumpy scientist and then Jeff Goldblum as Jeff Goldblum, this is a big step backwards.
The dialogue is pants, full of cliches and "clever" quips that certainly don't help to humanise the characters, and that's half of the problem. I don't give a fuck about any of these people, so the threat of them being eaten isn't exciting. This might have been fine if the action was at least fun to watch, but that brings me on to the other half of the problem.
The action is too fast, and there's too much of it. They've tried to cram too many set pieces into these two hours and it just ends up coming off as one long sequence of "stuff happening". Each individual scene is over almost as soon as it begins and the film rattles on to the next one, without giving anything time to build up any tension or any room to breathe afterwards.
We go from car chase to bike chase, from exploding helicopters (was Roger Corman involved in this film?) to dinosaurs attacking human hamster balls, with not a moment in between to sit back, take a breath and reflect on any of it. We're not talking Transformers levels of incoherent white noise here, the action itself is all very well done. You're always able to tell what it happening and it doesn't just fill the screen with as much CGI shit as it can, it just can't overcome the pacing issue.
SPOILERS START
There's also this weird focus on using dinosaurs as weapons and on the hybridisation of them, which feels very cartoonish and out of place in what is otherwise a, relatively speaking, pretty grounded film. The InGen army thing didn't sit right with me either from a purely fanboy perspective, too. InGen is a bioengineering company. They're not OCP. They wouldn't have a private army. In The Lost World the InGen guys are a bunch of fuck up mercenaries and hunters scraped together last minute to go capture some dinosaurs, they're not fucking Spetsnaz.
Can't say I'm a fan of what they did with the raptors, either. They don't even look right, and the bit where they turn face again and help Chris Pratt fight Indominus was dumb. The scene where they wipe out the InGen special forces was okay, but not quite as good as the attack in the long grass from the second film, which is a fantastic scene from a relatively poor picture.
T. Rex (which also didn't look quite right) getting all of 5 minutes of screen time was disappointing as well, but I have to admit as dumb as the scene when the last surviving raptor showed up was (shot like she was the second coming of Christ), her teaming up with Rexy was a bit special. Didn't even mind when they looked at each other afterwards and were like "we cool?" before going their separate ways.
It does that thing where it replicates shots from the old films too, which is rarely a good idea because you've got to be damn sure the reaction won't be "man, I wish I was watching that film" when you do. There's a shot of a dude being stepped on straight out of The Lost World, and they even do the heroes (two adults and two children) surrounded by raptors, and it's done shot for shot until the third raptor arrives to change it up.
SPOILERS END
It isn't all bad, it's just a little bit dull. Man of Steel suffered from the same pacing problem, and it certainly isn't as bad as that picture, but I'd struggle to recommend it on the whole.