describe the movie The Avengers in a few words? superhero, war, new york city, ensemble cast, dvd, samuel l. jackson, scarlett johansson, marvel, joss whedon, mark ruffalo, chris evans, marvel cinematic universe, jeremy renner, chris hemsworth, tom hiddleston, iron man, the avengers, captain america, superhero team, hulk, american, ensemble, thor, loki, marvel comics