Annette Bening, Julianne Moore, Mark Ruffalo, Josh Hutcherson and Mia Wasikowska have all been added to the cast of upcoming indie flick, “The Kids Are All Right,” reports Variety.

Shooting is scheduled to begin today from the Lisa Cholodenko/Stuart Blumberg-penned script.  Cholodenko (“High Art”) is will also be Directing.

The narrative centers on a brother and sister (Hutcherson, Wasikowska) who are determined to find their same-sex parents’ sperm donor, who dramatically upsets their family dynamic as soon he enters their lives.  Bening and Moore will play the parents, and Ruffalo is to play the donor.

Inferno Intl. will handle international sales on the project, and Jeffrey Levy-Hinte of Antidote Films is producing with Plum Pictures’ Celine Rattray and Daniela Taplin-Lundberg, UGC PH’s Philippe Hellmann and Gilbert Films’ Gary Gilbert and Jordan Horowitz.