I am probably one of the few people who thought he did a nice job with that creepy movie about the insane asylum, 'Shutter Island'. Also, I enjoyed his roles in 'The Departed' and 'Inception'.
I like all those as well But I thought his portrayals of Hoover and Hughes were grade "A" acting. I could believe I was watching those historical characters. He got both characters down to a "T" with mannerisms and voice inflections.