It is a movie. OAV and Movies are going to be a story all on thier own. They are not going to follow the linear ways of the manga and the anime so the story is going to avoid touching on it.

Things to expect when you see an anime movie or OAV. Less rivalry between main chars. A story that begins and ends within the video's playtime. All the moves from the show up to that point but nothing new. More eye candy effects and nicer artwork overall. No affect on the series at all. Less depth then the series, they want it to be good on its own, but it will not have the detail of an ongoing series so they have to keep things simpler.

All that said, I liked it. Why? Because it is Naruto. I would have liked to have seen it in the theater if I could. I did not expect it to be anything like the series to begin with so I didnt have expectations that were not met. I was a little surpised with thier increased focus on modern technology (the cameras, lighting, theater and vehicals) but that has been in the anime anyways so eh *shurgs*.