That was over 20 years ago in 2001.
Today he is 49, and has starred in 39 movies in total, 27 since Jurassic Park III was released.
In Jurassic Park III, I think Alessandro Nivola looks:
Jurassic Park III scores 5.7 out of 10 on The Movie Database.
Alessandro Nivola's first acting role was as 'Noel' in The Ring, released in 1996 when he was 24.