Update: Variety have also been told that Ewan McGregor, in one of the biggest additions thus far, will appear as Bill Fordham, loose husband of Julia Roberts‘ Barbara and absent father to Abigail Breslin‘s Jean. A very encouraging turn of events for this production, wouldn’t you say? The original story can be read below.

There are just a few big spots left on August: Osage County‘s roster — with this, one more is knocked down. And, as per Variety‘s word, we now know Misty Upham (Django Unchained, Frozen River) will be appearing in John Wells‘ newest photoplay, having been signed for a role that pits her right up against Meryl Streep.

As was the case in the Tracy Letts production, the character of Johnna Monevata is a college student whose Native American heritage creates some tension for Violet, matriarch of Osage‘s central Weston family. However, the sensible members of this group find themselves taken with her hardworking and helpful demeanor, a sort of divide which can only lead to more conflict on the part of these folks.

This is one of the most refreshing cast updates we’ve received so far, if only because it’s someone outside this troubled Oklahoma set. Julia Roberts, Chris Cooper, Abigail Breslin, Juliette Lewis, Benedict Cumberbatch, Dermot Mulroney, and the great Sam Shepard also star in August: Osage County, which will start production sometime this fall. Expect it to hit in late 2013.

Next up, Deadline have reported that Britt Robertson (Secret Circle, Dan in Real Life) will take her own familial part in Starbuck. The Vince Vaughn-led comedy is currently being prepped by Ken Scott, who’ll be remaking his own French-Canadian comedy smash; like that film, his American production follows a normal man who discovers his days as a sperm donor have led to 533 offspring.

Robertson will be seen as just one of those many (technically) unintentional children, a “troubled teen” whose two-word descriptor only leads me to think Starbuck‘s central character will have to help her out… which really helps himself. You get the picture.

Cobie Smulders and Chris Pratt also star in the hijinks, which should be getting in front of cameras relatively soon.

Now that these people have been corralled into the respective productions, are you looking at them any differently?