The Prisoner of Zenda

There's a handsome young man about town in London, whose unusual good looks hint about a scandalous ancestry. On a visit to a tiny East European principality, he decides to take a walk through a dense forest. He falls asleep under a tree and is discovered by the king and his entourage who are out hunting. Both are stunned by their startling resemblance to each other. The king who is days away from his grand coronation invites the Englishman back to his castle and here the visitor becomes embroiled in a sinister plot to overthrow the monarch and usurp the throne.