Great performances but ...

I honestly did not know that the film was based on a play, but as the minutes went by, I got the feeling I was watching a play. Later I learned what the film was actually based on.

I got bored a lot.

Personally it is not enough for me that the performances are awesome,(they are for sure) if the film in general does not have an interesting dynamism in the screen, a well marked tension.

The situations and the settings are very tight and conflicts are treated in a very repetitive way in dialogues and scenes, making the movie way too long for the matter IMO.