The film from the get-go is filled with fantastic, artistically creative special effects, drama (lots of personal and professional drama), and almost-realistic projections of ominous other-world creatures and invaders who, of course, choose Manhattan this time instead of LA as their initial stage of war against humanity and Earth, for that matter. One can always count on space invasion of Earth to begin in either New York or LA--never Des Moines, IA, or say, Tampa, Fl. Not exciting enough terrain, I suppose, for warfare with aliens. The character dialogue is often flat and winded, yet intentionally and even unintentionally humorous. For example, the demi-God character, Loki, is considered "adopted" because he has anger management issues with the world. The Avengers themselves also have unresolved male prowess issues, are depressed, and narcissistic. Hilarious! I especially found humor in Mark Ruffalo's character, The Hulk, riding in on a small motorcycle he presumably found and rode right to the exact place in Manhattan his Avenger cohorts were fighting aliens. It was so unintentionally cheesy it made the movie audience roar. See this film only because you crave fantastic action and devastation scenes (and perhaps some nice eye-candy men). For great and beautiful dialogue, as well as filmography, go next door to see "Polisse" by French writer/director, Emmanuelle Bercot Maiween.
Pros great action, great artistry, great special effects, sexy characters
Cons slow, poor dialogue, simplistic, average acting