Very mediocre. Certainly doesn't warrant the current rating on IMDb

Rating: 4/10 (21 August 2012)

Of all the recent Marvel movies which led to this film, I thought Thor was pretty decent, and the rest were blah. "Avengers" is arguably the worst yet.
The film reminded me of Transformers 3, with constant explosions and destroyed buildings, as well as ubiquitous 3D scenes which actually don't look very realistic. This movie is a gimmick.
The plot is utterly cliché and haphazard. The dialogue, save for a few funny lines, is very bad. No great acting except for Loki, and he seems out of place among wooden performances. Even the editing was pretty lazy. This "movie" seems more like a TV serial with forced dialog.
The entire film is basically just a vehicle to watch the different heroes fighting with each other.