That was over 21 years ago in 2000.
Today he is 66, and has starred in 113 movies in total, 66 since The Kid was released.
In The Kid, I think Bruce Willis looks:
The Kid scores 6 out of 10 on The Movie Database.
Bruce Willis' first acting role was as 'Extra (uncredited)' in Ein Guru kommt, released in 1980 when he was 25.