"The superheroes we have today are modern American folklore," Michael Uslan told me, " it's contemporary mythology. The ancient gods of Greece, Rome and Egypt still exist only today they wear spandex and capes.
There is a place for "mature content" in comics and it may even be in some of the more mainstream titles. And DC Comics certainly has the right to play around in the Watchmen universe if they so choose.
The ideas and concepts first found in Frank Miller's Batman: Year One have been so pilfered through over the last 25 years that it feels strange to see this work adapted for film without any narrative alterations.