Avengers Teaser of the Day

Marvel's Avengers marketing blitz continues with another TV spot for the much-hyped superhero team-up flick, featuring Tony Stark telling Loki just what he's up against if he plans on messing with Earth.

To wit: the Hulk, who smashes up a few of Loki's alien soldiers in this new footage. We also get a better look at the alien baddies themselves, and they definitely don't look like Skrulls or Kree. So who