Being one of my favorite shows,I am a die-hard fan of Naruto....the movie was awesome!
The plot had to do with Shion seeing the future;Naruto's death while fighting the army created by a strong villain.Naruto,Sakura and Neji are assigned a mission of protecting her.She tells Naruto about his death in near future.He just tries to accomplish their mission but the girl drives him mad.She has her own concepts about things,mainly being others working for her and her having lost all of her feelings.
Due to his special gift,Naruto affects her deeply and changes her...it is only revealed at the end of the movie that she starts liking him a lot.
It is like ''going against the fate''.Naruto fights the soldiers by his "Kage Bunshin no Jutsu"...he gets hit...just like in Shion's dream....fortunately that is a clone.The worst comes afterwards...both are on the verge of drowning in a sea of lava...when Naruto creates a Great Ball Rasengan and combines his own chakra with Shion's.That becomes a potent weapon and they get out alive....
The power lies in believing....
Giving up is something everyone can do...
Naruto is so cute!

Believe it!!!
Really cool movie!