The worst religious films I ever saw

Let me give you an illustration of what I mean. When my play The Zeal of Thy House was produced in London, a dear old pious lady was much struck by the beauty of the four great archangels who stood throughout the play in their heavy, gold robes, eleven feet high from wingtip to sandaltip. She asked with great innocence whether I selected the actors who played the angels “for the excellence of their moral character.”

At least one good actor was selected for this film!
"Any of my personal beliefs or opinions runs the risk of impinging on your own relationship with the movie. I feel movies are best left enigmatic, left raising more questions than answers. I don't want to ever preach. So [whatever you get] from the movie [is] far more interesting than I could ever offer."

I replied that the angels were selected to begin with, not by me but by the producer, who had the technical qualifications for selecting suitable actors – for that was part of his vocation. And that he selected, in the first place, young men who were six feet tall so that they would match properly together. Secondly, angels had to be of good physique, so as to be able to stand stiff on the stage for two and a half hours, carrying the weight of their wings and costumes, without wobbling, or fidgeting, or fainting.

Thirdly, they had to be able to speak verse well, in an agreeable voice and audibly. Fourthly, they had to be reasonable good actors. When all these technical conditions had been fulfilled, we might come to the moral qualities, of which the first would be the ability to arrive on stage punctually and in a sober condition, since the curtain must go up on time, and a drunken angel would be indecorous.

After that, and only after that, one might take character into consideration, but that, provided his behavior was not so scandalous as to cause dissension among the company, the right kind of actor with no morals would give a far more reverent and seemly performance than a saintly actor with the wrong technical qualifications. The worst religious films I ever saw were produced by a company which chose its staff exclusively for their piety. Bad photography, bad acting, and bad dialogue produced a result so grotesquely irreverent that the pictures could not have been shown in churches without bringing Christianity into contempt.

God is not served by technical incompetence; and incompetence and untruth always result when the secular vocation is treated as a thing alien to religion….
― Dorothy L. Sayers, Why Work?: Discovering Real Purpose, Peace, and Fulfillment at Work. a Christian Perspective.