The Only Thing You Know is a 1971 Canadian drama film, directed by Clarke Mackey.
[1] Described by critics as a female version of the 1964 film Nobody Waved Good-bye,[2] the film stars Ann Knox as Ann, a teenager who is dissatisfied with her suburban Toronto life.
[3] Striking out on her own, she moves in with her boyfriend Scott (Allan Royal) in the downtown St. James Town neighbourhood, but becomes embroiled in a complex love triangle with Scott and his friend Paul (John Denos).
[1] Its script consisted solely of a 15-page story outline, around which the actors improvised their dialogue so that the film would feel like a documentary.
[1] The film was screened at the 1984 Festival of Festivals as part of Front & Centre, a special retrospective program of artistically and culturally significant films from throughout the history of Canadian cinema,[8] and was later broadcast on CBC and TVOntario in the 1980s,[1] but was generally not widely seen until it was released on DVD in 2006.