Even though I always liked Sasuke hair, he was at his peak of hair style in the latter stages of the manga. Indra pulls off long hair arguably better than Hashirama and Madara. So the case is obvious and clear here.
Nope, the thing shapes his hair differently and he's shown with that on the entire time he's shown in the movie.
Therefore that's not his hair lol.
Could be if he takes it off. Its entirely ruined in part 3...looks like he uses some bs gel or something to slick it down and over his eye which is stupid designing. Kishi made those horrible characters and so many bad mistakes making that next generation chapter.