I just noticed, every time there's a "princess" in a Naruto movie her personality pattern is always the same. At first she hates or distrust Naruto and as the movie goes on she warms up to him. From what I remember:
- Original Movie 1: The actress princess didn't 't like him and hated that Naruto was constantly asking for an autograph, but at the end she gave him one in a photo of her giving him a kiss in the cheek. That was sweet of her.
- I dont' think movie 2 and 3 had any "princesses" but I haven't seen them anyway
- Shippuden Movie 1: Has Shion (this has been the worst offender) she starts hating Naruto's guts and mocking him with her predictions of him dying, but by the end of the film she develops such a huge crush for him (in such a short time) that she even indirectly proposes to bear his children.
- Shippuden Movie 2: Has Amaru, the girl disguised as a boy, who at one point got so pissed of with Naruto that she even slapped him in the face, but by the end of the movie she jumped after Naruto, who was falling from the sky, and took hold of him tenderly as both fell. It was implied she might've gotten a crush on Naruto but it was left pretty ambiguous. I want to add that this is the same movie that had Naruto holding Sakura tenderly after some monster attack and she got so shocked that she slapped him and trembled a little. I guess realizing that Naruto is now becoming a man makes her very nervous.
- Shippuden Movie 3: No princess here, but as discussed, in exchange we got Sakura spending a lot of time with Naruto. We got those scenes of her slapping him because she was concerned for his safety, then again for the same reasons when he sneaked out of the hospital while looking at him tenderly from behind and praising his healing abilities. She later breaks him out of jail and near the climax of the movie there that comment of Sai about women becoming stronger when they fight for the men they love, but I think Sakura told him to shut up before he got to the love part.
-Shippuden Movie 4: Has Sara, the stubborn princess who thanks Naruto for rescuing her from a lethal fall by slapping him (poor naruto sure gets slapped a lot

) but by the end of the film she became extremely sadden when Minato explained that her memories of Naruto would be erased for the sake of not altering the past. I don't think this one developed a crush for Naruto but at the very least became very fond of him. Something to note is the Sakura got slightly annoyed when they encountered Sara's daughter in the present and Naruto mentions he might've seen her in a dream. Sakura ended up pulling his ear and calling him a pervert for a dream. Oh Sakura, you just jelly that Naruto wasn't dreaming about you.
- Shippuden Movie 5: I haven't seen all of the movie but from what I gather Ryuzetsu, the "princess" for the movie, wasn't too fond of the attitude Naruto was taking in the prison and wanted him to be more serious about it. I saw a scene where she even slapped him (again, what's with every women slapping Naruto?

) when Naruto though she was an okama (transvestite) instead of a girl when her gender was exposed. Midway she reluctantly formed an alliance with him, but by the near end she willingly sacrificed herself twice for Naruto's sake. The first one was when she put herself between Naruto and the claw of the giant monster villain that was about to stab Naruto, he was also stabbed but to a lesser degree thank to Ryuzetsu. The second one was when she used a special technique to revive Naruto who had dying because of said stab wound and she did it knowing that using the technique would come at the cost of her life. As with Sara I'm sure that she didn't develop a crush on Naruto but became extremely fond of him.
Whether they develop romantic feelings or not for Naruto it seems that every girl always follows the same pattern of at first disliking but eventually warming up to Naruto. I talked about this because, whether intentional or not from the makers of this movies, it seems people are fond of the idea of Naruto working hard to earn the trust of each new girl he encounters instead of that trust simply being given to him immediately. It seems that kind of story of earning the trust of the girl has a special appeal in Japan.
This is why I truly believe that Sakura will be Naruto's final girl, because he worked hard to get her affection. He never gave up on liking her and that caused Sakura to little by little change her opinion of Naruto. In the majority of the animes I've seen, there's always a preference for the girl that isn't that fond of the main character in the beginning but warms up to him as he works hard to gain her affection. That's the very reason the stereotype of
tsundere is one of the most, if not the most, popular in Japan.
This turned out to be longer that expected, I hope I can get some feedback and opinions on this.