Don't get influenced by the bad reviews, those people are professional movie makers (atleast that's what they think of themselves)
Honest review: Just watch the movie as it is, the cinematography is at its peak. Mia's role is one of the best I have ever seen, kudo's to the actor who played her. Just go with the emotions of the movie and you will thank for your life, however bad it is (trust me it can't be worse than Mia's). Truly inspiring, emotionally rich, brilliant acting. Yes, it's a must watch peeps!