Lots of action in the Marvel universe.

Rating: 8/10 (20 May 2014)

Loki travels to Earth with the help of aliens who intend to invade. Loki steals the Tesseract in order to open a portal from the invaders' location to Earth. While doing this, he instills a large amount of tension among certain SHIELD operatives.
The SHIELD project 'Avengers' gets started to counter Loki's activity. By the time the Avengers (Iron Man, Thor, Hulk, Black Widow, Hawkeye, Captain America) get done dealing with each others' egos, Loki has opened the portal.
When the invaders flow through to Earth, the Avengers and the SHIELD flagship are already bruised and battered. Will the Avengers save Earth?
-----Scores-----
Cinematography: 8/10 The blend of SFX and real photography was consistently well done.
Sound: 6/10 The volume levels were wildly out of control.
Acting: 8/10 Better than I expected. I liked the performances of Downey, Hiddleston, Ruffalo, Johansson, Renner, and Gregg quite a bit.
Screenplay: 9/10 The story was well told. Two hours and twenty-two minutes is fairly long, but went along very smoothly.