I didn’t go with that version of that line because the action climax has many other lines in her deep voice, so making that one change would seem weird.
I’d love to have the whole movie in her higher pitched voice but it seems virtually impossible to adjust pitch of just her voice and not the rest of the soundtrack.It is quite possible to go into the audio channels and separate her voice to adjust her voice close to how she sounded in the trailers.
I don’t see why this is worth the effort.
I just think it sounds unnatural for a fourteen-year-old girl to sound like an older woman. It also makes her voice sound very robotic.