Sleepwalking, dead, boring, an endurance test for the audience - all have been said before so why am I adding to the comments I agree with? There is this:
"...it isn't before a man treats her badly that she realizes on stage, that she has talent and that she connects with the audience and emerges as a stronger human being."
This must be the reviewer's imagination talking. One can tell that this is the point of the movie that its makers are trying to make but they failed. Utterly. The only reason I kept it going in the machine was to see if they could redeem themselves. But they did not. It's a very big disappointment. There is no connection with the audience - either in the theater's audience inside the story itself or the movie audience watching this.
Too many close-ups, just way too many. I'd call it possibly a workshop on close-ups - if you're in the business. Otherwise, why waste money on this? It's just pointless.
"the film never reveals more than it needs to."
Honestly, it reveals nothing.
And yes, why was so much money thrown at this movie? I seriously wonder if the backers needed to lose money for tax purposes.
