Yes demography can be interesting but it has nothing to do with the title of the thread. Oh well.
Regardless X3 has not been released in most of the Orient yet but I think DeVinci will beat it there anyway. DeVinci has made over $60 million in Japan and over $20 million in South Korea I doubt X3 will approach that.
DeVinci has also made more then X3 in England ($51 million to $32 million) and Austrialia ($18 million to $11 million). It's really only the US where X3 has out performed DeVinci because american superheroes are just not as popular overseas as they are here.
Virtually all comic book movies follow the same pattern they will do the same business overseas as the US or slightly less. The Batman movies have always brought in less overseas than the US. The Spiderman and X-Man movies are about a 50-50 split. Meanwhile something like the Harry Potter movies will perform like DeVinci and will more then double its domestic gross overseas.
I see you live in England. Does the X-Men, Spiderman, Superman, Batman etc have any where near the appeal of something like Harry Potter, Narnia, Lord of the Rings or DeVinci in England.