It shows neither Batman has any limits nor his stories. There's always a Batman in us.

The birth of “Batman” during the Aztec era. Just okay - predictable. Introduction of classic villains like the Joker and Two-Face.

Tal cual lo hicieron los Españoles, ya regresen el oro!

This ostensibly takes place in the 16th century, but late in the movie, Cortéz says [spoiler]"just 50 meters more,"[/spoiler] even though the meter wasn't invented until the 18th century. In the grand scheme of things, that gaffe doesn't really matter, but with how underwhelming the movie as a whole was, little things like that really cemented my opinion of it.