Dawn!

Dawn is a 1979 Australian sports biopic about the threetime Olympic gold medallist swimmer Dawn Fraser, who served as technical adviser for the production, it starring Bronwyn Mackay Payne and Bunney Brooke, written by Joy Cavill and directed by Ken Hannam. The film was entered into the 11th Moscow International Film Festival.

The film was produced by Joy Cavill who had previously made a documentary, The Dawn Fraser Story 1964.In the 1970s Cavill wrote a script based on Frasers life and showed it to Jill Robb and John Morris of the South Australian Film Corporation. They agrees to put up 250,000 and raise the balance of the money in exchange for 50 of the profits. ........

Source: Wikipedia