That was over 43 years ago in 1978.
Today he is 78, and has starred in 119 movies in total, 108 since The Deer Hunter was released.
In The Deer Hunter, I think Christopher Walken looks:
The Deer Hunter scores 7.9 out of 10 on The Movie Database.
Christopher Walken's first acting role was as 'Nikanor "Nick" Chevotarevich' in The Deer Hunter, released in 1978 when he was 35.