The film is 'Carnage', an adaptation of the acclaimed stage play 'God of Carnage', which had its Zurich premiere in 2006 before being translated into English and brought to London's West End in 2008. That version starred Ralph Fiennes, Tamsin Greig, Janet McTeer and Ken Stott. When it made its way across the pond and premiered on Broadway, the cast became Jeff Daniels, Hope Davis, James Gandolfini and Marcia Gay Harden (it ended up winning Tony awards for direction and Harden's performance).
Keeping with the tradition of only casting incredible actors in every version of this story, Polanksi's film stars John C. Reilly, Kate Winslet, Jodie Foster and Christoph Waltz.
Originally billed as a "comedy of manners without the manners," the story "...begins after a playground fight between two boys, and follows two sets of parents as they attempt to resolve the children's altercation, but instead devolve into chaos." If anything, it should be interesting to see Polanski, a filmmaker whose recent work has been pretty dour, tackle a comedy with this cast.
Check out one image below and head on over to Empire to see the rest.
There is no scheduled release for 'Carnage', but the original article suggests it should be ready by late this year, making it a possible Oscar contender.