Sorry I don't think Sandra Bullock has the range that Nicole Kidman does, even though it's popular to love Bullock now and hate on Kidman (which is interesting since all you gotta do is look at their filmographies and you'll see Kidman's work is 10 times stronger, and well, and Sandra Bullock's performance in THE BLIND SIDE should've never been rewarded with an Oscar, Kidman's turn as Virginia Woolf however was spectacular). Kidman looks great in the film and many critics are seeing it as her artistic comeback. Dianne Wiest is so brilliant that I couldn't imagine her being anything but outstanding in this (the clip and reviews seem to support this)
Here's a link to Pete Hammond's positive review on Deadline.com, the film has no distributor as far as I know so it may not come out this year after all but we'll see.
Rabbit Hole Review
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"