First of all, Scarface is a drama, not a shoot'em movie or action movie or anything like that.
The movie is 2 hrs and 40 mis ... do you know how many minutes involve weapons?less than 30.
Sure,lots of bullets in the end, but that doesnt turn it into a shoot'em or action movie.

Secondly, the movie is a remake, the movie has no storyline.
Yes.
Its not the tale, its HOW you tell the tale.
Scarface does it best.

For example, the movie "A fistful of dollars" :
It is also a remake (Yojimbo) and how much of a story is there?
So is it a so-so movie? Hardly.
There are so many aspects to every movie, storyline is just one of them.
Again in this case, its not the story, its HOW you tell the story.

Thirdly, you cant compare a movie to a play, youre talking 2 different dimensions.

P.S. - Miller is one of my fav authors and Death of a Salesman is a great play, but IMO Miller's best work is All My Sons.