If a Christian performer makes dark behavior look glamorous, he glorifies it. Even more, he bears false witness against His neighbor. How? He does not bear true witness for the King. 'He who is not with Me is against Me' (Matthew 12:30).
Media has glorified darkness in fashion, film, and music. Consider a haute couture look called 'heroin chic,' featuring bony beauties with dirty hair and deep circles...
Or films that tease our teens with the 'fun' of drugs, violence, lies, and immorality...
Or music that maims our conscience through the sanctification of lust, greed, and intoxication.
As a citizens of Heaven, we are ambassadors of Christ, and we must represent Him well. We must example the benefits of the Kingdom of God, where 'there is no darkness nor shadow of death' (Job 34:22).
Because in the city of angels, we stand for 'the Father of lights, with Whom there is no variation or shadow' (James 1:7).
If we're offered a role in the wrong show, God will make the decision clear. If He says so, we say 'no'--unless the role ends up right, illustrates a powerful lesson, or ultimately points to God. Therein we do not bear false witness in Hollywood.
P.S. To read the other devotions in this series, please see the God's Ten Commandments For Hollywood series.