People really love confusing "North America" with "International" or "western". Battle Angel Alita is only the NA name, the rest of the world called it Gunnm, not just Japan, it's even clearly stated in the
link in that first quote by Muh :|. All EU versions I've seen are called Gunnm (except UK I'd guess?), including Spanish and Portuguese which means most of SA too.
Other name changes are also quite weird, Tiphares instead of Zalem? Ketheres instead of Jeru? Just... why? o.O I'm a bit sad they went for NA names instead of using what most of the world knows, wonder if they'll keep these in dubbed versions.