At the time that she did All My Sons, I think she was more of a curiosity. People wanted to see how Mrs Tom Cruise fared. Also, as others have mentioned, Katie hasn't had a hit movie in ages and she's off TV. People seem to respect her as an actress, but that doesn't necessarily mean they'll pay top dollar to see her. I admire her for doing plays and I hope she does more; maybe next time she'll do something smaller, Off-Broadway, and hopefully good.
"You travel alone because other people are only there to remind you how much that hook hurts that we all bit down on. Wait for that one day we can bite free and get back out there in space where we belong, sail back over water, over skies, into space, the hook finally out of our mouths and we wander back out there in space spawning to other planets never to return hurrah to earth and we'll look back and can't even see these lives here anymore. Only the taste of blood to remind us we ever existed. The earth is small. We're gone. We're dead. We're safe."
-John Guare, Landscape of the Body