That was over 10 years ago in 2011.
Today she is 40, and has starred in 61 movies in total, 19 since Thor was released.
In Thor, I think Natalie Portman looks:
Thor scores 6.6 out of 10 on The Movie Database.
Natalie Portman's first acting role was as 'Mathilda Lando' in Leon: The Professional, released in 1994 when she was 13.