This film is brilliant and the performances of Michael Sheen and Frank Langella are legendary. As Roger Ebert said, they came to embody their characters. I watched the original Frost interviews in 1977 and this film captures the horror/thrilling moment when Nixon admits what he did and declared that as long as the President did it, it was not illegal. Michael Sheen as Frost in that moment produced one of the best responses of both shock and satisfaction. It was a major "gotcha" moment in front of a television audience. Unforgettable.