The Lost Prince (2003)

British empire monarch George V (Tom Hollander) and his wife Queen Mary (Miranda Richardson) decide to hide their last-born son, Prince John, also known as Johnnie (Daniel Williams), from the public, to prevent being embarrassed by his epilepsy. While his protective elder brother is ruthlessly groomed for court life, Johnnie gets packed off to a country cottage on the royal estate of Sandringham. With his full-time governess Lalla (Gina McKee), a substitute mother, he's abandoned to playfulness and virtual social neglect. The Great War and the Russian Revolution change life in Britain, also at court, even at Sandringham, where royal refugees are expected.