That was over 23 years ago in 1998.
Today she is 40, and has starred in 51 movies in total, 41 since Halloween: H20 was released.
In Halloween: H20, I think Michelle Williams looks:
Halloween: H20 scores 5.8 out of 10 on The Movie Database.
Michelle Williams' first acting role was as 'April Porter' in Lassie, released in 1994 when she was 13.