The Book of Eli (2010)
Incorrectly regarded as goofs
The Christian "Old Testament" is the Chumash with some variations (reorder of books, and reorder of the 10 commandments depending on religious denomination). The New King James Version is an Old Testament with the Christian Gospels added at the end, some of which the main character, Eli, quotes. These two books would be considered separate and unique in a library.