Question: Why were the dwarves names changed for this movie? I was trying to find a correlation of each dwarf to the original dwarves, but couldn't. It seems like it was changed for no reason.
Question: Why does the Prince stick around the Queen if he doesn't like her? And why does he come to her Kingdom in the first place?
Answer: He's travelling to start trade agreements with the neighbouring kingdoms. He doesn't hate her; in fact, he doesn't know that she's evil. Even after Snow White informs him, he gives her the benefit of the doubt. Snow says she's evil, but he hasn't seen her do anything wrong.
Answer: There are no "original" names for the dwarves, they are unnamed in the fairy tale. If you are referring to the names they had in the Disney movie, well, those were inventions by the Disney people. It might not even be legal to use them.
Ioreth