The Giver - a movie that hearkens back to "Soylent Green", where that one scene depicting how lush and wonderful the world once was absolutely crushes me as a viewer. This current movie multiplies that effect tenfold and there were times when I struggled to regain my composure. The same thing happened when the tree came down in Avatar; I lost it. I hate crying at the movies.
As a result, I have to say, save yourself the pain. Don't see it. Avoid the prospect of a bleak future, where the lack of history and memories is designed to protect a would-be utopian society from reality. No emotions, no pain, no feelings means no broken hearts.