Percy Jackson: The Titan's Curse

Percy Jackson: The Titan's Curse was a planned third film in the Percy Jackson franchise.

Plot
The plot is unknown, but it may have the same plot as the book, but with some changes in it.

Why It Was Cancelled

 * 1) The film was cancelled due to the fact that both Percy Jackson films were box office disappointments.
 * 2) The cast members are getting too old to reprise their roles respectively as their characters.
 * 3) Implying to reason #1, both two films were also heavily panned by critics and fans of the books.

Result

 * A reboot is happening that will be more loyal to books accoridng to rumors.