Mailing the actors...

[Sminty_Smeagol]

Hey, I have contrived a bit of fanmail for some of the actors in hopes of getting a little something ( not planning on selling anything I might get back, that is) out of this whole LOTR experience, but the addresses are for their agencies or whatever and some are in the UK and I live in the US... now, I'm stupid, but, does US postage work in the UK? if a mail shipping place in the UK recieves it, will they just throw it away because of the american stamp or whatever? Or can you mail a letter internationally? I expect I wouldn't be able to stamp a self-adressed envelope, if it was to be mailed from the UK cuz I doubt mailing something from the UK using USA stamps wouldnt work... but would something that was mailed with US stamps be able to be delivered into another country?

Call me stupid but whatever.
Does anyone here know what actors reply to fanmail? And how fast and such?