Late last week, we saw the epic teaser poster for Joesph Kosinski's 'Oblivion,' and now, true to the theme of the day, we have the first trailer for this post-apocalyptic sci-fi actioner. If the poster had me intrigued, the trailer has me hooked. Tom Cruise plays a drone repairman on a nearly completely abandoned Earth. The universe this creates, the dark betrayal story at play, the monsters, the…