Pelletier got into journalism through her involvement with the women’s movement in the late 1970s. She was co-founder and editor-in-chief of the feminist monthly magazine La Vie en Rose from 1980 to 1986 and wrote a weekly column for Montreal’s largest French daily La Presse from 1988 to 1992. She was also a regular on Peter Gzowsky’s Morningside on CBC radio and on CTV’s Sunday Edition as well as being Quebec parliamentary correspondent for Radio-Canada’s Le Point into the mid-1990s.
She spent five years as co-host of CBC’s flagship current affairs program The Fifth Estate and in 2001, began a new career as an independent documentary filmmaker and screenwriter, writing and directing 11 documentary films to date.