It will chart his career from the build-up to his first Olympics in Beijing 2008 at just 14 years old, through winning gold at Tokyo 2020 and his appearance at Paris last year, when he won silver.
It promises exclusive footage along with personal family films and candid chats. Those interviewed in the film include Tom's mum Debbie and his husband Dustin Lance Black.
Tom, 30, said: "That 14-year-old...