Has anyone tried or had success with Christopher Walken? Thanks!

Hello all. I just joined this site yesterday. I have been an autograph collector for almost 20 years. I started when 15 and have gained quite a collection. I have done quite a bit through the mail, but I also have acquired through personal interactions and also purchases through other collectors/dea...

Has anyone had any success with Michael Keaton or Jack Nicholson? I am a huge 1989 Batman fan and would LOVE to get an autograph. Thanks!