A gay version of the Bible, in which God says it is better to be gay than straight, is to be published by an American film producer.

New Mexico-based Revision Studios will publish The Princess Diana Bible – so named because of Diana's "many good works", it says – online at princessdianabible.com in spring 2009. A preview of Genesis is already available, in which instead of creating Adam and Eve, God creates Aida and Eve.

"And the Lord God caused a deep sleep to fall upon Aida, and she slept: and he took one of her ribs, and closed up the flesh instead thereof; and the rib, which the Lord God had taken from woman, made he another woman, and brought her unto the first. And Aida said, 'This is now bone of my bones, and flesh of my flesh: she shall be called Woman, because she was taken out of me. Therefore shall a woman leave her mother, and shall cleave unto her wife: and they shall be one flesh.' And they were both naked, the woman and her wife, and were not ashamed."

The film studio said it would also adapt and direct the revised Bible as a two-part mini-series, The Gay Old Testament and The Gay New Testament, once it is completed.

"There are many different versions of the Bible; I don't see why we can't have one," said Max Mitchell, who directed the science fiction comedy Horror in the Wind, in which an airborne formula invented by two biogeneticists reverses the world's sexual orientation.

"I got the idea for the Princess Diana Bible from Horror In The Wind," he added. "After the world becomes gay, religious people create The Princess Diana Bible, which says that gay is right and straight is a sin. Then they burn all the King James Bibles."

The move has already provoked upset among Christians, with the blogger Douglas Howe at the Idol Chatter site describing it as "inspired by a political agenda and one person's desire to contort not only the text but the very context of it to suit his own perspective".

There was also criticism on Mitchell's Princess Diana Bible site, where one commentator said the choice of title was "very disrespectful to the late Princess Diana … It's just one more thing to link her to what many people believe is immoral. Sad, very sad indeed."

But Mitchell said: "There are 116 versions of the Bible, why is any of them better than ours?"