That was over 14 years ago in 2008.
Today she is 35, and has starred in 37 movies in total, 21 since Never Back Down was released.
In Never Back Down, I think Amber Heard looks:
Never Back Down scores 6.5 out of 10 on The Movie Database.
Amber Heard's first acting role was as 'Maria' in Friday Night Lights, released in 2004 when she was 18.