Originally Posted by Dark Link
Just an FYI to everyone here, Final Valley's fight animation and Epi 167's fight animation were both done by the guys who animate the Naruto movies, hence why the animation was a little weird, but is very similar to the movies if you compare the two.
Naruto episode 133 (the Final Valley fight) and Shippuden episode 167 both had Atsushi Wakabayashi as Storyboard Artist, Director, Art Director, and Key Animator. He did not; however, work on the Naruto movies. The filler animation was handled by the same studio though.