Ain't It Cool News is running the rumour that either Thor or Captain America will feature in a teaser for The Avengers that apparently confirms that Thor's evil bro Loki will indeed be the big bad.

It seems the film may use Captain America's macguffin the Cosmic Cube to unleash the skrulls on Midgard (Earth for non-comic book proles). Guess they're gonna use the Hulk like a big green napalm bomb then...