This film directed by Sarah Polley was funded ad produced by the National Film Board of Canada, which won the Oscar for best documentary film in 2013. To be honest, this is my first time seem a documentary film, due to the requirement of unit study, but it does gives me a strong impression that documentary film can be so interesting and attractive. Polley made this film in a subjective style, about a woman and her relationship with her family, however the film gradually changed the key point of this story from the secret love affair of the woman, Polley's mother, to Polley's birth secret. By employing several interviews with siblings and others which holds different perspectives, Polley represent the story in a subjective way. To make this film actively, she also used real Super-8 home-movie footage and fake Super-8 reconstructions, which she showed at the end of the film, even ask Michael, her father who raised her up but not her biological father to read as the narrator. In conclusion, it is a fabulous documentary film.