The sportswear giant pays homage to Kerr's incredible resilience and dream of being the best.

The film begins with her childhood growing up in Perth, her AFL dream of playing for the West Coast Eagles, and also gives us a glimpse into her family, relationships and Billy the Boxer (Sam’s pet dog).

"When I was a kid growing up playing AFL or footy, it took three years for the boys to figure out I was actually a girl," she said.

Her home in the Western Australian capital had a long hallway, which the 24-year-old said was perfect "to curl the ball from the laundry room to get it in the study".

The West has a footy mad culture with both the West Coast Eagles and Fremantle Dockers having huge followings. Kerr spent most of her childhood with "a footy in her hand" and was either at her brother's Daniel's games, at her games or at the Eagles, where her parents were life members.

"However, it got way too rough real quickly," she said.

When she first started playing football (soccer) Kerr wasn't sure if it was the sport for her.

"I was woeful," she said.

The four-time Gold Boot winner wish she had made it her dream earlier. She made her debut for the national team at the age of 15 and told her family not to come to her first game.

"I had to have a huge wake up call to see this is what I wanted to do for my career," Kerr said.