40 As to the motion picture industry itself, We exhort the Bishops of all countries, but in particular you, Venerable Brethren, to address an appeal to those Catholics who hold important positions in this industry. Let them take serious thought of their duties and of the responsibility which they have as children of the Church to use their influence and authority for the promotion of principles of sound morality in the films which they produce or aid in producing. There are surely many Catholics among the executives, directors, authors, and actors who take part in this business, and it is unfortunate that their influence has not always been in accordance with their Faith and with their ideals. You will do well, Venerable Brethren, to pledge them to bring their profession into harmony with their conscience as respectable men and followers of Jesus Christ.
Source: Vigilanti Cura (Vatican.va)