That was over 22 years ago in 1999.
Today she is 52, and has starred in 45 movies in total, 41 since The Sixth Sense was released.
In The Sixth Sense, I think Olivia Williams looks:
The Sixth Sense scores 7.8 out of 10 on The Movie Database.
Olivia Williams' first acting role was as 'Jane Fairfax' in Emma, released in 1996 when she was 28.