After Solara drives away from the convoy truck wreckage, she's seen pulling up to the house; the armoring over the driver-side door window is seen, but moments later when she pulls up to Eli on the road, the window isn't armored. Once they're driving again, the armor is back.
A wind-up record player would run at 78 rpm - too fast for a 70s disco single and way too fast for a 70s LP. Also, the needle would almost certainly gouge the record rather than follow the vibrations in the groove.
After serving Eli his dinner and water Claudia left the room and the door was locked behind her. But a few scenes later when Solara enters Eli's room to offer her body, she just walks in without unlocking the door.
In the ending shot, Solara uses Eli's iPod, by pushing different points on the track wheel. However, as we saw before, it's a 3rd generation type - the so called "clickwheel" was only introduced in the 4th generation.
The complete content of the Bible in braille can't fit in a volume the size of the book Eli carries in the movie. Actually, just one of the gospels (Matthew, Mark, Luke or John) in braille is usually a book that is about 1 or 1 1/2 inches wider, 2 inches taller and 1 inch thicker than the book Eli carries. The whole Bible in braille could get to 39 volumes (books) which would make a stack 6'6 feet high.
Near the final scene of the film, Eli's fully copied Bible is added to shelf of other religious texts. However a copy of the TNK (Tanakh), better known as the Hebrew Bible is already shelved. The Hebrew Bible is basically the same as the Christian Old Testament, with the book order changed. However, the Tanakh and the New King James Version (Eli's version) have enough differences in the translation of certain passages to distinguish each other, so a Tanakh and a NKJV Old Testament are not redundant.
The printed pages coming off the Alcatraz press at the end are complete with textual notations and cross-references of the type and style found in modern study Bibles, and these are something that would not have been present in the Braille version, therefore they could not have been memorized and recalled verbatim along with the entire text, even if it were possible to do so.