MORE ON MEL GIBSON'S CANCELING of the showing of his The Passion of Christ at the Vatican:

ROME, Italy (CNN) -- Mel Gibson has pulled "The Passion of Christ," depicting Jesus on screen, from a Vatican-sponsored film festival -- because his movie is not ready.

The unreleased, but controversial, movie about the final hours of the life of Jesus was scheduled to be shown Tuesday to a select group of Roman Catholic officials as part of the "Christ and the Cinema" festival.

But Gibson had "second thoughts" about some of the scenes and is re-editing the film, the movie's producer Nick Hill wrote in a letter to the organizer, Andrea Piersanti.

The former actor, who has written and is co-producing the film, said he would be happy to schedule a preview in the Vatican once the movie is finished, the letter added.

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