In 1962, he was hired by American producer Robert Hughes to assume the direction and photography of a documentary about the poet
Robert Frost when the original director,
Shirley Clarke, left the project. The film, ''
Robert Frost: A Lover's Quarrel with the World (1963), went on to win the Academy Award for Best Documentary Feature, with Clarke credited as the sole director, despite Macartney-Filgate directing the majority of it. He returned to the NFB briefly to work on the 1963 series Lewis Mumford on the City
, co-directing four of the six films. He won a Peabody Award (the Institutional Award for Television Education) for his 1964 documentary, Changing World: South African Essay'' and, working again with Robert Hughes, conducted a rare interview with
Vladimir Nabokov. In New York City, he worked with
William Greaves, who he had previously collaborated with on the
Candid Eye series, and made films for television about such writers as
Harold Pinter,
Marshall McLuhan and
Henry David Thoreau. He returned to Canada in the late sixties and again rejoined the NFB briefly to work on the
Challenge for Change series, before moving to the Canadian Broadcasting Corporation. At the CBC, he directed the
Lucy Maud Montgomery: The Road to Green Gables (1975),
Grenfell of Labrador: The Great Adventure (1977), and
Fields of Endless Day (1978). Perhaps his two most accomplished films for the CBC were
Dieppe 1942 (1979), which was co-written by
Timothy Findley and
William Whitehead and was nominated for seven
Genie Awards, and
Timothy Findley: Anatomy of a Writer (1992), which won the
Donald Brittain Award for best social/political documentary program at the
7th Gemini Awards in 1993. Macartney-Filgate also won two
Canadian Film Awards for
Blood and Fire (1958) and
The Hottest Show on Earth (1977) and received an Ontario Film Institute Award in 1981. In the 1970s, Macartney-Filgate taught at the Department of Film,
York University in
Toronto, when
James Beveridge was chair of the department. While still a student,
Jennifer Hodge de Silva worked with Macartney-Filgate as assistant director and associate producer on
Fields of Endless Day, "one of the first Canadian productions to significantly chronicle nearly 400 years in the history of African Canadians." In 1979 she was associate producer for
Dieppe 1942. ==Retirement==