I'm at the moment in the process of conceiving and detailing a fantasy world and it's main characters in an attempt to present the idea to toy and cartoon companies for an eventual toyline and cartoon series; I've been reading a bit about copyright laws and the Berne convention and I assume just publishing the concept online first in an attempt to have it time-stamped so no one uses my ideas without my permission is not really effective if I really have to deal with legal issues, so I think actually copywritting the thing first it the way to go.
Question is, I've checked copyright.gov and can't figure exactly what applies to the concept I want to protect (fantasy world and it's inherent rules, characters and their powers and personality traits, plotlines for episodes); is this covered by the "Online registration of a basic claim in an original work of authorship" at $35? Can I compile the whole information in a series bible and copyright the whole thing for $35? If not, what are my options instead?
Secondly, I live in Portugal and haven't checked how to deal with copyrights here, but supposing it's a similar process/ value, can I copyright it either here or in the US, and have it worldwide protected either way? Can I even copyright material in the US being that I am Portuguese and resident in Portugal?
Thanks for your attention.