Of course he looks nothing like Nixon, but he brought the wily heat of a dude who knew he was wrong for what he did, yet because he was smarter than everyone else, he could outthink everyone and get away scott-free...
I also liked the detail where we saw Nixon as the angry spurned nerd, the guy who used his intellect as a weapon against people who didn't like him or thought he didn't fit in (there's a book out now that talks in some detail about the fact that Nixon was a bitter dude during his college years)...
I liked this movie a great deal, and you're right, it's not going to be everyone's cup of tea ("it's too talky," "nothing happens"), but it Is based on a stage play and it's more about an intellectual battle of wills... it was fascinating to see how this David Frost cat was forced to, in a way, grow up and confront the fact that he had the burden of being a nation's interrogator...
My only complaint was that the "documentary confessional" device didn't quite work, where characters would speak to the camera and give us their thoughts on what was going on... just felt out-of-place and seemed like a holdover from the stage play that Peter Morgan and Ron Howard couldn't quite figure out what to do with...
Other than that, this is a solid, intelligent film. ________________________________________________________________________ <------ That's it, that's all.