Noah Media has teamed with Charlton and his family on the project, which has just entered production. It will be released theatrically in summer 2020, 30 years on from Italia 90, where Charlton led the Republic of Ireland in its first ever World Cup.
The producers said there will be rarely seen archive and the film will explore the story of the Englishman who became an Irish hero.
Jack Charlton won the 1966 World Cup alongside brother Bobby, who was always the more revered player. Jack was the more outspoken of the pair and a household name as pundit and TV celebrity by the early 1970s, before turning his hand to coaching.