Can you name this anime film?

[Kilmannan]

Hi guys.

Trying to hunt this film down:

It's futuristic but not overly so.

There are two cities, one is on the ground the other hovers miles above in the atmosphere.

No-one knows what goes on in the upper city except it's a more luxurious lifestyle.

The ground city makes all the goods to go up there and is basically purely industrial.

Two boys want to try and get to the upper city and attempt to do so by climbing the massively supply pipes.

 

One of the boys tries to climb the pipes and dies when he gets hit by cleaning blades that come down on a regular basis.

I think there was also some sort of betrayal going on with the big boss and a female character.

Any help greatly appreciated, it's driving me nuts!

[Gjallarhorn]

Battle Angel Alita.

[Kilmannan]

Yes!!! Legend!!

Cheers mate!!