AN Australian film has won the top prize in the youth section of the Berlin Film Festival.

Adelaide filmmaker Sophie Hyde's 52 Tuesdays, about the relationship between a teenage girl and her mother, who is undergoing female-to-male gender reassignment, was awarded the Crystal Bear for best film on Friday, according to the Hollywood Reporter.

The film previously won Hyde the best director prize for World Cinema at the Sundance film festival in the US.

Prizes in the festival's Generations 14+ section are voted by a seven-member teenage jury from across Germany.

52 Tuesdays stars gender-neutral actor Del Herbert-Jane and first-time teenage actor Tilda Cobham-Hervey.

Originally published as Australian film wins at Berlin festival