On July 31, 2010 Naruto Shippuden Movie 4 The Lost Tower was released in Japan, and subbed and distributed online in late April of 2011. So like the others that came before it Naruto Shippuden Movie 4 The Lost Tower has to live up to the hype of being a feature film for the most popular manga in the world, and it does just that.
The story for the NSM4 is very similar to the any of the previous one's. Naruto meets a princess, or any damsel in distress, and saves her from enemies who wish to see her dead. Now I don't want to give away too much of the plot, just that it involves time travel and a story that will get you hooked, and love right away.
The voice acting is top notch as always. Junko Takeuchi reprises her role as "Konohagakure's #1 Hyper-active Knucklehead Ninja" Naruto Uzumaki, and does an excellent job as always. The rest of the cast does an unbelievable job as always, really getting you into the movie just like they do in the show.
Lastly the anime in NSM4 was superb. It was a high definition version of the show and from the action scenes, to the scenery, the animators did a fantastic job on this movie.
Now this was a really good movie just like all the Naruto movies before. However, even though this movie was good, my personal favorite is still a tie between the Naruto: Shippūden the Movie, and Naruto Shippūden 3: Inheritors of the Will of Fire. But I can assure you that this movie is definitely a close Second.