Mel Gibson is one of those Catholics who belong to a secret chain of information about what is going on in the world and the faith today, emphasizing apocalyptic events in front of us. His entire filmography as a director is engaged in it. ALL of his movies are a part of the subculture of the chain, clearly pointing to it with titles of his movies like "Apocalypto". He wanted to make a movie on the third secret of Fatima, but he was stopped from doing so by evil powers in Hollywood and Catholic Church. After that, he is reduced to making movies about this in a hidden way, with symbolic meaning in every one of his movies, which he uses to spread the information and message in a subversive way. His movies are actually a part of the chain of communication. When some information through the movie is sent, that becomes confirmation for the entire chain that the information they received was true. Since the "great deception", mentioned in Bible, is coming for Christians in the end times, one must understand that the media belongs to satan, and the Bible says that "if those days weren't shortened not even the elect would be saved". All of us would be deceived by the power of deception. In these tragic circumstances, Christians are forced once again to go into catacombs and develop their own "media" which is telling the truth. Except for movies they are doing the same thing with books, which are far more revealing since those books are known only to the members of the chain...
Well, we can't say that chain is anti-catholic since even many Catholics belong to the chain, although its dominantly protestant thing and information is coming from true Christians from both sides, one of the key things in the chain is a clear warning against the demonic infiltration that is happening inside a Catholic church. You even have this interview here with Mel Gibson where he is openly talking about this, criticizing the Pope and warning about the NWO counterfeit church that will be made inside Catholicism.