"This movie will become an example of the perfect way of taking a stage adaptation and turning it into a movie!"
You are so right, but I do have to say that this is a piece that is so well written that it would look good in any medium (film and theater).
When I read the play I was imagining every scene in my head as how it would look on film. Then I re-read it again and saw every scene in my head how it would look and feel on the stage. I think it's one of those pieces that just adapts well. Most plays are not like that.
"In the U.S.A.
You can have your say,
You can set you goals
And seize the day,
You've been given the freedom
To work your way
To the head of the line-
To the head of the line!"
---Stephen Sondheim