Naruto the Movie: Blood Prison

is the eighth overall Naruto film and fifth Naruto: Shippūden film which was released on July 30, 2011 in Japanese theatres. The official DVD release date in Japan is announced as 25th April, 2012. The English subtitled version is expected to be released sometime in the summer of 2012.

Plot Summary
After being falsely accused of attempting to assassinate the leader of Kumogakure, the Raikage, and killing jōnin from Kirigakure and Iwagakure, Naruto is imprisoned in Hōzukijō, a criminal containment facility also known as the Blood Prison. The master of the castle, Mui, uses the ultimate imprisonment jutsu to steal power from the prisoners. In this place, something is aiming for Naruto's life. The battle to prove his innocence and uncover the truth has begun for Naruto and his friends.

Trivia

 * Despite taking place after the time-skip, this movie drops the "Shippūden" in its official title.