Jack of Hearts -- Film Description:
"A drama based on a humorous short story by Isabel Huggan in which a thirteen-year-old girl is mortified to learn that she has been given the role of a boy in a forthcoming ballet recital."
-- National Film Board of Canada

Source:
National Film Board of Canada. "NFB -- Jack of Hearts" National Film Board of Canada. http://www3.nfb.ca/collection/films/fiche/?id=16162#ff-lang.