BWAY Baby2 said: "None of these major stars are doing it for the money- they are all extremely rich. They are doing it, most likely, for the challenge, the prestige and the accolades- being the toast of BWAY in a he sell out hit- which can do wonders for the ego and for the next possible career move."
Let's not pretend that they aren't being paid handsomely! (for commercial productions at least –– it's a different story for Carell and RDJ at the nonprofits)
Yes it's a small fraction of what they'd get on a film, but Clooney will undoubtedly be earning north of 100K a week, plus advances/option payments, as the star, the playwright, and the source material.
This also strikes me as the type of middlebrow play that's going to be done at every single regional and community theatre.