Uncle Iroh: It was not by chance that for generations people have been searching for him, and now you have found him. Your destinies are tied, Zuko.
Uncle Iroh: There are reasons each of us are born. We have to find those reasons.
Princess Yue: We have to show them that we believe in our beliefs as much as they believe in theirs.
Aang: Some great monks can meditate for four days!
Aang: I will stop them.
Dragon Spirit: I know you will try.
Answer: The TV show Americanized the pronunciations whereas the movie said them correctly.
The show is American, so with original characters you're allowed to say them how you want.