I respect your opinion but strongly disagree. It was much much more than popcorn film.
Also, it was the brilliance of Gerry's performance to be able to remain calm and determined throughout the entire movie.
We are different but it did evoke very strong emotions from me; it was a very very moving performance from Gerry. Did you pay attention to his face? The pain, the memories were so painfully present in his expressions.
I cried a lot during and after the movie as well.
I don't think that you have to concentrate on his actions, whether it was right or wrong. You have to concentrate on his feelings. IMO.