BBC Two has announced plans to air the film Finding Jack Charlton, recorded during the final 18 months of the Leeds United, England and Ireland legend's life.
The documentary will detail Charlton's battle with dementia, offering "an intimate, compelling insight into Jack the man and the challenge faced by thousands of families universally".
Contributions from key characters from Charlton's career in football will feature, while his wife Pat and son John will talk on camera about him for the first time since his death in July this year.
"I am so delighted that this documentary will be coming to BBC Two," said Patrick Holland, controller of BBC Two.
"Jack Charlton was a giant of a man, a footballer of legendary achievements and a manager who helped transform a nation.
"This is a very special film, giving intimate access to Jack and his family in his last year, exploring the journey and impact of his extraordinary life."
Finding Jack Charlton will have a limited cinema release later this year before airing on BBC Two in 2021.