She look like Aubrey Plaza

I agree, Rebecca Hall is a full-grown, beautiful woman who looks EXACTLY like Aubrey Plaza. AND...
I have an idea and it's so ZANY IT JUST MIGHT WORK.

Check it: Aubrey Plaza and Rebecca Hall are cast as sisters, but they don't know it. They were twins (siamese, actually) but they were separated at birth. They were born with a conjoined natal cleft, and actually shared a part of a gluteus Maximus muscle. A surgical team separated them in a heroic 19 hour operation, which drummed up a 1.6 million dollar hospital bill.

Their mother was a teen craigslist escort (before they discontinued them) and, unaware that she qualified for welfare, went on the run with the twins in tow shortly after leaving the Indianapolis hospital. She was afraid she would never be able to come up with the jack, so she hitchhiked across the country with the babies in tow. Nobody picks up hitchhikers anymore, but who would not stop for a single mom?

When the twins were just three years old she had to ditch one of them because of rising rents in the Torrance area, and she choose Aubrey because she was becoming too sarcastic. She left her on the steps of the Fire dept., and Aubrey was raised by a wealthy bi-racial gay couple in Los Feliz. (trust fund industry wanna b's-but in that hood, who isn't?)
Rebecca Hall was , on the other hand, raised in a trailer in Lomita, and becomes enraged with resentment when she learns of Plaza's good luck. She could reprieve her role in "Christine" where she becomes a screaming psycho at her mother. Sort of a Jennifer Janson Leigh but instead of pill poping it could be psycho screaming.
It has it all: racial, gender, "for the children" , socio economic issues from wealthy Afro-anglo transsomething to Torrance trailer trash. Throw in a female pediatri surgeon and some gratuitous violence on the male characters, and this could be a winner.,