The Man In The Iron Mask (1998)

Paris is starving, but the King of France is more interested in money and bedding women. When a young soldier dies for the sake of a shag, Aramis, Athos and Porthos band together with a plan to replace the king. Unknown to many, there is a 2nd king, a twin, hidden at birth, then imprisoned for 6 years behind an iron mask. Can he be substituted for the real king?