Dench, who had directed him in a play while at the Central School of Speech and Drama. His breakthrough year was in 1993, in which he starred as the unpleasant Tim in Michael Winner's film Dirty Weekend. Winner chose him after seeing him in a play at the Criterion Theatre. Also in 1993 Sewell starred in the BBC serial of George Eliot's Middlemarch and on stage in Tom Stoppard's play Arcadia at The Royal National Theatre (Lyttelton). His film work includes 1995's Cold Comfort Farm, directed by John Schlesinger, the lead role of John Murdoch in the science fiction film Dark City in 1998, Amazing Grace, The Illusionist and Nancy Meyers' romantic comedy The Holiday. Amazing Grace deals with William Wilberforce's political fight to abolish slavery in Britain, with Sewell playing Wilberforce's co-campaigner Thomas Clarkson. Sewell is known for his villainous roles, such as those in A Knight's Tale, The Legend of Zorro, Bless the Child, Helen of Troy and The Illusionist. He spoke of his unhappiness about this, saying that "[I] don't want to play a baddie again." "Everyone has their thing they have to get around," notes Sewell. "With me, it's like okay, how can I make this upper class bad guy in the 19th century different and interesting?" In 2008, Sewell appeared in the HBO miniseries John Adams as Alexander Hamilton. He received critical praise for his portrayal of Charles II in the BBC's Charles II: The Power and The Passion. The series' cast included Ian McDiarmid, Helen McCrory, Rupert Graves and Shirley Henderson and spanned the life of the king from his last days in exile to his death. He co-starred in the controversial film Downloading Nancy, which was released on 5 June 2009. At the Sundance Film Festival in 2008, audiences walked out of the screening. Despite the controversy, Sewell continues to staunchly support the film. "It's a film I'm very proud of, whether you consider that it fails or succeeds, whether you like it or don't like it. I'm proud to be in it." Between 2006 & 2009, on BBC Radio, Sewell read Russell Thorndike's stories of Doctor Syn – the adventures of an 18th-century clergyman, adventurer, smuggler and pirate. Although best known for his work in costume dramas, Sewell prefers "cravat-less" roles in modern pieces, such as the role of Petruchio in the BBC's 2005 version of Shakespeare's The Taming of the Shrew.