Portman has scored a number of high profile awards nominations for her role as a ballerina in the dark thriller, while she is also promoting new romantic comedy No Strings Attached.

But the 29 year old is planning to step out of the spotlight once her work is done, so she can concentrate on being a mother.

She tells People.com, "I'll be out of the public eye after (the baby is born). (I will just take any future career opportunity) as it comes."