How will they make more Percy Jackson movies without Clarisse? I mean she plays a big role in some of the books like "Sea of Monsters" and "The Last Olympian"

I'm not sure , but Clarisse played a huge role in the lightening thief and the sea if monsters, if they want the fans to go see the next movie, they need to pay more attention to the book . What happens, where they go, all the good stuff because they don't seem to like including everything . Also they need to keep clarrise because who else will pester Jackson ?? Right??

Well, its quite obvious that the script writter -Craig Titley- really didn't think of the serie's plot when writting, that or he wasn't thinking of following movies. So my guess is they're going to have a little surprise when writting SoM script. Hopefully they will re-make LT with a 12 year old and make us all happy, then they can carry on.

But of course that's probably not happening, so the realistical explanation is they'll pull a "Percy learned about everything we actually didn't mention after the final scene of the movie", so Clarisse'll pop in and subtly Percy'll blurt out the two major facts (name and parent) when talking to her.

Example: "I thought I smelt somehting bad, and next thing I know, there's a daughter of Ares right there" or "what do you want Clarisse?"

He'll probably also learn that Luke was under the control of Kronos the entire time too, and they might start popping up dreams about Thalia then too.

So in other words BIG REVELATION

Personally I think they should redo the movie, so Percy can be a 12 year old (and not a 20 year old in LO), so they can make Annabeth more Athenian, you know, the minor influencial details that are below book-to-screen adaptations *cough cough*

*spoiler picture*