Mel Gibson has made some good movies and his The Passion of the Christ was, in my opinion, excellent. Nevertheless, he has essentially undone himself with his drunken rage at the police who apprehended him for DUI.
His behavior is not just appalling, it's reprehensible. The charges of anti-semitism that have followed him throughout his career and especially in the lead up to the release of The Passion have been amply confirmed by Gibson himself.
His drunkenness is tragic but, as serious as it is, it might win our sympathy, or even our empathy. His obvious hatred of Jews, however, is a much more profound sin, especially in the anti-semitic world we find ourselves in today. It's a sin which commands not our sympathy but our dissociation.
Mel needs to think about some very serious penance, purgation, and contrition. He needs to spend some quality time on his knees laying open his soul so that God can cleanse his heart of the hatred he harbors there. Until he spends that time I don't know how there can be anything more that he could ever offer the Church.