OK...I think the left-handed thing is something we can go off of.
I'm searching right now...
Angelina - we know it's not her...p0art 2 interview said so
Nicole Kidman - hmmmmmm maybe? although Nicole is more flat chested so I say no - has a nickname too
Sarah Jessica Parker - don't think it's her either plus she has a nickname (SJP)
Julia Roberts - definitely not her
Mary-Kate Olsen - don't think so...too tall and plus she has a nickname
Demi moore - person is too small for Demi
Scarlett is left-handed (taken from an interview I found)
"I like cheesy TV shows like Judge Judy. I can't stop watching Jerry Springer when it's on, either. That's not all I like, of course, but I like dorky things - TV dinners and stuff." Ftrom a Scarlett interview,....People associated Jerry with trailers.