I watched the movie Avalon High. It stars Britt Robertson (Life Unexpected; The Secret Circle) and Gregg Sulkin (Wizards of Waverly Place).
A teenage girl moves to a new high school where she slowly discovers herself involved in the reincarnation of King Arthur.
I give this movie 3/5 stars.
Loosely based on the book by Meg Cabot, who is my favorite author.