Gentlemen Don't Eat Poets (1995)

Sir Hugo (Sir Alan Bates) is more interested in reconstructing dinosaur bones than in paying attention to his wife, Lady Harriet (Theresa Russell). He's not thrilled when daughter Cleo (Lena Headey) brings home her betrothed, Sidney (Steven Mackintosh), who aspires to be a poet. The new butler, Fledge (Sting), provides Lady Harriet with the attention she's been missing, and then seduces Sidney. Did he have a role in Sidney's disappearance as well?