Throughout making the film, we had to recreate technology
that hasn't been invented.
[Richard Mansfield] In this theme, we've tried
to combine ultramodern weaponry,
and then still maintain a connection
with hand-to-hand combat film, which people love.
So, this is the trident world.
This is King At|an's trident.
This is the Holy Grail.
One of the most important bits of design
was to have these Atlantean inscriptions on the thing.
[both grunting]
[Dehne] S0, this is King Orm's. It's quite extraordinary.
There were certain shapes that we thought,
"Okay, we can honor the original artists of these comics."
But we certainly made it our own.
[grunting]
The Brine King has a big and powerful crustacean kind of weapon.
King Nereus‘ trident is great.
It's beautiful. It's very regal, it's a lot of gold,
and it shoots, which is kind of cool.
For the Atlantean soldiers, we designed these incredibly elaborate guns,
which ﬁre hydro-pulse energy.
These guns, through some process of fusion,
take water and turn it into this source of tremendous energy.
It's a very powerful Super Soaker. ﬂaughs]
When it fires, its muzzle flash has a hydro, water quality to it.
[Mcllwain] When Murk does his power-up on his gauntlet,
it's pulling in water from the environment,
and then when he punches, it releases this...
Another form of hydro-pulse energy.
The Atlantean suit, in a lot of ways, works like a reverse astronaut suit.
The suit keeps the water inside, keeps the air out.
Whenever they left the water,
there's the visor that would move up into place.
When you're underwater, in their natural environment,
their visors just dissolve away ‘cause they're not necessary.
What the...
[Wan] A big part of these scenes
is the idea that I could design my own, basically, space ships underwater,
while giving each kingdom a very different specific aesthetic.
The Xebelean ships have bioluminescent technology...
The Fishermen people,
they have these ships that look very much like ocean life form.
Like giant sea turtles...
Or ships that look like giant whales.
Some of them are actually individual-sized ships for one person.
The Brine Kingdom...
They're actually the really cool part of the battle.
So they have these crab guns, and they grab up lava.
The Atlanteans have very high-tech, giant ships.
Some of the Atlantean ships look like stingrays.
I really hope I get an opportunity to do another project in a world
where no one's ever seen
because we got to challenge physics.
Making this end battle sequence,
it was so much fun.
And it looks amazing.
[creatures screeching]