Sort of a film, but I watched "Lennox Lewis: The Untold Story" on Amazon Prime.
Dr Dre narrates it. Very good. Lennox was/is an absolute class act inside and outside of the ring, and there were some good insights, particularly about his two defeats. That "draw" in the first Holyfield fight still grates for me - I remember it well, he absolutely battered him.
https://www.imdb.com/title/tt7140274/