I guess with the current state of special effects any book could be turned into a movie. I'll stay open to the possibility that it could be a good film - but there are a lot of reasons why it may be a turkey also. Films are an art form that are run by committees { studios } whereas books are the product of one persons imagination. The creative spark has less of a chance to be extinguished.

Imagine the casting problems. Brad Pitt and Angelina Jolie as Adam and Eve ? Michael Douglas as Lucifer ? Whoopie Goldberg as God ?