There's any available? I bought the game today on Desura, but it doesn't came with legends. Perhaps there's some not official?

Legends? I don't understand.

For some parts like the beginning, before character selection. Really, I couldn't understand well what was going on.

AND IT WON'T STOP THERE, BABY.

The most I'm aware of about out-of-game explanations being released is this glossary: http://ice-pick.com/translate/glossary.html

If there is something you need to figure out, there might be something helpful in there. For example you may hear characters referencing "shebneg-adyr," and I'm not sure you can have a clear explanation in-game, so you'd have to look it up there.

Be careful browsing the internet for things about Pathologic, though. Just about every site is festering with spoilers.

Thanks for the link, but my problem at first was understand what was being talked. I read english well, but can't understand speaked english so well.

Didn't you by chance mean ,,subtitles" instead of ,,legends"? There are none (not even unofficial) for the intro and the night theatre scenes. For the spoken English,there's almost none - what is important is the text written in the dialogue boxes. I saw a transcription of the theatre intro dialogues somewhere, maybe on this forum.

Yes, subtitles. English problem, cause in portuguese subtitles is legenda, so I said legend, but in english it has another mean. A mistake.
Thanks, I havent't found, so I will search for the script.