I'm the King of the Castle (1989)

Thomas is the 12-year-old son of a millionaire who lives in a big mansion surrounded by woods in France. When his mother dies, his father hires a widowed maid to take care of everything while he is away. The woman brings her only son, Charles, to live with them and, hopefully, be company to Thomas.

I'M THE KING OF THE CASTLE

King's Castle — PHP Network

Je suis le seigneur du chateau / I'm the King of the Castle (1989) DVD5, DVD9, download for free

I'm the King of the Castle (1989) - IMDb

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I'm the King of the Castle (1988) - Filmaffinity

I'm the King of the Castle (1988) - Filmaffinity

The Risk of Darkness: A Simon Serrailler by Hill, Susan