Firstly, I feel like mentioning this movie is (thankfully) not a canon. It has only shown what we have already seen in the original series. So, our protagonists - Naruto, Sasuke, Sakura and Kakashi, have got a mission to protect someone. However, all that person does is urging them not to get involved directly because the ones they are dealing with are 'dangerous'. As usual, Naruto's 'never give up' attitude goes for a win and manages to impact that person. At the end of the movie, the villain has to get hit by Naruto's Rasengan. That used to be the tradition of Naruto franchise back then.
I did enjoy this movie but as I said the movie is not a canon and you won't be missing anything if you decide to skip it.
I did enjoy this movie but as I said the movie is not a canon and you won't be missing anything if you decide to skip it.