Ok, just finished it.
I can say it made me want to play "All Quiet on the Martian Front" or something similar...but...the movie isn't really that good
Yes, we get to see some rather impressive retro-futuristic cities and equipment but the character's animation is awful and most of the Tripods/airplanes/fighters are CGI-animated so they don't really blend with the surroundings (95% of the explosions are just ridiculous, with the vehicles breaking apart in neat little blocks - and no, this is the final version of the movie not some WIP version).
The characters are walking cliches (the Irish are all IRA; the Germans are all warmongers, the only Japanese is a Samurai, etc.), there's lots of "inspiration" taken from the movie Independence Day - the Martian fighters; the canyon chase; the mothership. And did I mention the weak animation? 99% of the male characters look Superman from 90's Animated Adventures:
The story isn't that good - they start by showing that the Human Alliance is breaking apart due to the imminence of WW1 (yes, the Martians invaded in 1895, we reversed-engineered some of their tech and took a civilizational leap, but in 1914 the Great War will happen...for the same damn reasons that in OTL!) but then the Martians invade again! And that's just in the first minutes of the movie... then we unite again and fight the Martians. There's also a subplot with some IRA guys who want to use Martian tech to liberate Ireland from the UK, but then the Martians invade...
And did I mention the reversed-engineered tech? Ok, we get:
a)these neat Human heavy tripods (who get destroyed by 1 measly heat-ray hit, except when the story demands otherwise - in those cases they just loose a leg);
b) scout tripods (who don't do much, are armed with machine-guns/light cannons and are destroyed with 1 shot! Again! But if the story needs it, they'll just catch fire);
c) propeller airplanes armed with missiles and heat guns but also with the old machine-guns in front of the pilot and jet engines that give them a boost when needed (which is really stupid - if the airframe of that type of propeller airplane can withstand a jet engine in the back, why not go for a full jet airframe?
)
d) flying aircraft carriers/battleships (I guess the Martians had anti-grav devices during the first invasion? These ships are gigantic but can fly between the streets of New York if the plot needs it).
One piece of Human tech that seems to be widespread is automatic rifle (they look like some advanced Maxim guns). Everyone uses one...and I mean everyone! They all seem to be masters of the "spray and pray" doctrine and do that even if the weapons do no harm to the Martian tripods. Of course I'm mentioning this for a reason other than bash the tactics of fictional army in a fiction war in an animated movie. I do it because some of the heroes suffer from this well-known syndrome:
Humans have all these neat Heavy tripods, that can destroy/damage Martian Tripods when the plot needs it, but most of the time they prefer to get on top of their turrets and spray and pray with their weapons (being them portable heat-rays or heavy machine guns)
I give it a 3 out of 10. It could be wayyyyyy better and now I understand why it took 2 years to be released!
And here's the most recent trailer, where you can see almost all of the things I mentioned