Spoilers - interesting movie

Rating: 7/10 (20 June 2020)

What I got from this movie was a nature vs nurture question. Adelaide turns out to be the Tethered, whilst Red is the true person who was attacked and swapped with Red. Grown up Adelaide appears to be a normal, functioning human being who is a good wife and mother. Red is a violent, twisted being. Would the real Adelaide have grown up to be like this with her parent's influence? Would the real Red have been a gentle Tethered whilst stuck in the underground if she had never known what she was missing out on? Also, each of the kids is half tethered, half human... Where does that leave them?
Another poster questioned how Adelaide didn't remember that she was the Tethered if the reason she wasn't speaking was because she didn't know how, not because of the trauma of getting lost. Compared to her new life of love, security and warmth her old life would have been a trauma so it would make sense for her to block this out as she grows and embraces her new life. Kids are known for being adaptable.
All in all, this is a good movie, very interesting and leaves questions unanswered which adds to the experience in my opinion.