The talented singer, songwriter and actress has scored a role in an Australian film, Best Enemies, which

premiered at Sydney's Entertainment Quarter last week.

Ms Barnhill, 19, stars as Llana in the film, which is directed by Ross Bark.

At the red carpet event, Alyse performed her own original composition which she wrote for the flick.

Best Enemies is a new teen drama film about teenage friendships and their problems in standing up to cyber bullies. A parliamentary inquiry has endorsed the film, to be featured in educational institutions across Australia.