Michael Sheen of David Frost in 2008's "Frost/Nixon", a film dramatisation of The Nixon Interviews of 1977. Despite appearing in the original stage production in a part written for him by Peter Morgan, Sheen was surprised to have been cast in the film: "Peter said he'd only be prepared to give the rights to someone who would cast me as Frost, which was very nice, but when the studios get their hands on something... Right up until we started filming I was prepared to be disappointed". Roger Ebert of the "Chicago Sun-Times" asserted that Sheen embodied his character in a "compelling, intense"
Michael Sheen Award for Best Actor in a Supporting Role. His second film appearance of 2006 was a supporting role in "Blood Diamond" as an unscrupulous diamond dealer. Also in 2006, Sheen starred as the troubled English comic actor Kenneth Williams in BBC Four's "" In preparation for the role, he lost two and a half stone (approx. 35 lbs), studied archival footage and read Williams' published diaries. Sheen has said he is "fascinated by finding the private side of the public face". "The Times" found his performance "mesmerising" while "The Observer" described it as "a characterisation for which the description tour-de-force