No matter what the character is, I just say to myself 'If I, Melissa George, was in that situation, how would I react?' and once you do that you can just go for it, and hopefully the performance comes through.
To be justified means more than to be declared "not guilty. " It actually means to be declared righteous before God. It means God has imputed or charged the guilt of our sin to His Son, Jesus Christ, and has imputed or credited Christ's righteousness to us.