Can you imagine if at some point in the movie Sakura's mom complained about her forehead and Naruto gave her a compliment about it? The minute that happens I bet she would be all over her daughter about not screwing up her chances to be with a great guy like Naruto.

It would be pretty awesome if this movie gave some sort of subtle approval from both sets of parents. Scenes implying that Naruto's parents like the idea of Sakura as their son's girlfriend and of Sakura's parents liking the idea of Naruto as their daughter's boyfriend.
Oh wow, red. You just made my day.

Naruto: Ne, granny why do you have that weird hairstyle??
Mebuki (right?): *promptly decks Naruto* so what!!??
Naruto: I'm sorry!! I'm sorry!!! I just wanted to know, honest!! I'm really sorry!!
Mebuki: FINE!! it's my forehead. I've always hated it. It's ugly. There, HAPPY!!??
Naruto: Huh?? well, if your forehead is anything like Sakura's, I think it's cute.
Mebuki: W-What!!??
Naruto: Yeah, Sakura-chan's forehead is cute. Makes me want to kiss it. I can see where she gets it from.
Now, that scenario has either of these two settings. One where it has Sakura around, and the other doesn't. It would be interesting if Sakura told her mom about "Sasuke" from the bench scene. And if she quoted "Sasuke's" words exactly the same, then Mebuki (?) would probably figure it out and interrogate Naruto to spill the beans upon hearing those exact same words from Sakura's story. And I think Mebuki will eventually keep it a secret from Sakura to figure it out herself (along with some hints from her).
But I'm not betting too much. I think, at best they'll only have a few lines.