The extraordinary story of Canadian icon Terry Fox will be told like never before in Run Terry Run, a new feature-length documentary directed by acclaimed filmmaker Sean Menard. The film offers an intimate, behind-the-scenes look at Terry’s legendary 1980 Marathon of Hope, drawing from 96 reels of never-before-seen footage and unheard audio interviews that have remained untouched for 45 years.
There was a dramatized production about Terry Fox that was done for HBO films in the 80s. I remember it being actually quite good.
https://en.wikipedia.org/wiki/The_Terry_Fox_Story