I can't guarantee that all the links I'm posting below me will have the movie in HD.
http://www.megaupload.com/?d=94NU7W9S
http://www.dattebayo.com/t/nsmovie3.torrent
Source of all the links - http://dragonballclassics.com/naruto/naruto-shippuden/download-naruto-shippuden-movie-3/ - - All the links can be found under the video.