Peter Jackson was 51 in The Hobbit: The Desolation of Smaug when he played the character 'Albert Dreary (uncredited)'.
That was over 10 years ago in 2013.
Today he is 62, and has starred in 49 movies in total, 4 of those since The Hobbit: The Desolation of Smaug was released.
In The Hobbit: The Desolation of Smaug, I think Peter Jackson looks: