To tell you the truth I don't think that Thalia will be in the movie considering that they didn't mention her tree in the movie.....also that they didn't put in a lot of the characters from the book such as Clarisse.
Thalia has to be in the second or at least the third movie! Thalia plays a huge art in both of them! Even if Thalia is only in the last few pages of the Sea of Monsters, it still is an important part. If Thalia isn't in the Sea of Monsters movie, she has to be in The Titan's Curse or else everything is going to be totally different.
no way
It has not yet been confirmed who will play Thalia in the Sea of Monsters. However, it is rumored by fans that Brenda Song will play Thalia.
Thalia is Paloma Kwiatkowski
Thalia can opt to leave the hunters. This answer came from the Percy Jackson Wikia.
Thailia grace
Yes, Thalia will come in the second book, but only at the end.
Thalia - Hunter of Artimis
Thalia Grace from Percy Jackson and the Olympian's middle name has never been revealed.
Not best friends, but good friends.
He went on a quest for the golden fleece.
According to Imdb, Kaya Scodelario is rumored to be playing Thalia Grace.
Yes, Thalia will be in the next book. I e-mailed Rick Riordan, and asked him, he said that we will see Thalia again.Your Welcome!