It’s the latest of DC Universe’s 13 animated features for the PG-13 crowd, following the recent “Batman: Year One,” more-than-decent “Green Lantern: Emerald Knights” and dull “All-Star Superman.” A chalice-carrying lunatic appropriately named Vandal Savage (voiced by Phil Morris) offers members of the Legion of Doom (including Cheetah, Mirror Master and — timely! — Bane) […]