That was over 23 years ago in 1998.
Today she is 36, and has starred in 67 movies in total, 57 since The Horse Whisperer was released.
In The Horse Whisperer, I think Scarlett Johansson looks:
The Horse Whisperer scores 6.7 out of 10 on The Movie Database.
Scarlett Johansson's first acting role was as 'Laura Nelson' in North, released in 1994 when she was 9.