I think, for the audience, whether you read it beforehand depends on how much you trust your own instincts. Some people might want to go in as fully informed as possible so they don’t “miss” anything, others just want to let it wash over them. For myself, at least with Pinter, I think I prefer to have the crutch.
But it’s different for the actors. I suppose it depends on how strong an actor they are. That is, if they’re strong enough to take the material in the Casebook, file it away for future reference and still approach the work from a fresh point of view. I’d like to think that the cast that’s been assembled so far does have that sort of strength.
There’s also the practical problem of audience vs. actors in terms of exposure. The audience member will have basically only one shot at viewing and comprehending the work, whereas the actors will live and breathe the text over and over, for weeks, if not months on end. They have the luxury of time in which to come to an understanding of the work, where the audience does not.
I guess that’s the essence of what acting is all about, really – that the actor can take everything he’s learned about the work in weeks of study and rehearsal, condense it and then convey it in one single burst of a performance. That’s magic.
Sarcasm is an allergic reaction to stupid people.