I love when romance is appropriately done. I am not against it in any show/anime/cartoon.
This movie was not a good example of it.
For whatever reason, a guy on the moon pines for Hinata and wants her hand in marriage by any means. He kidnaps her sister, Hanabi, to lure them to him.
The adventure to get back Hanabi as it turns out, is a kind of love life therapy session / hook up / little date between Hinata and Naruto to make up all the lost chances they had in the manga.
Naruto---after a single sideways glance at her in the sun and a long walk with her filled with touches and not much else---magically falls in love with her. It is half-way through the movie and it already feels like an expensive filler, where you could have replaced Hinata with any other princess with a sister and have the same effect. Literally nothing makes good sense in this film, from how they fell in love to them ending up in the middle of space.
All of this is sort of canon(?) however, so not even the beautiful animations could cover up how much the writers have sullied the characters growth and integrity from this ordeal.
Yet it begs the question: what exactly is the point of this movie?
But like Neji's death, it has no point. Just another quick fix for two completely incompatible characters to be awkwardly forced together at the expense of others, including themselves.
By the end as the credits rolled, it somehow felt awfully wrong instead of the good bittersweetness that you'd usually get with a true ending. Like they had all deserved better than this.
This movie, (along with the war-arc, that's another monstrous debate) completely turn the franchise into a weird soap opera, and sullied numerous characters all to justify nonsensical pairings among other issues. Overall a huge disappointment, considering this is the "finale", the very last of the Naruto franchise while they're still young and figuring out themselves.
The only pro I could think of was the animation, and Jiraiya's narration at the beginning.
Simply, it reeks of fan-service, point blank. What a shame.