Following four years' worth of movies building up for this moment, "The Avengers" is the big crossover that finishes the first phase of the Marvel Cinematic Universe, by bringing together some of Earth's mightiest heroes. When the Asgardian prince Loki makes a deal with the leader of the Chituari army to subjugate Earth, S.H.I.E.L.D. director Nick Fury has to bring together a group of remarkable people to stop this Alien threat. That includes Iron Man, Captain America, the Hulk, Black Widow, Thor and Hawkeye all teaming up to save the world, as hard as it might be interacting with each other, due to their different personalities. But this team-up works. The ensemble cast is perfect, especially Robert Downey Jr., which reprises his role as playboy-genius-billionaire Tony Stark. Joss Whedon manages to make everyone in this group of heroes shine. The characters are as complex as it gets, the humor is on point, the action is otherworldly and the most impressive at the time this film came out, the stakes are high and it just delivers on every level, living up to the expectations and the promises its predecessors created in the minds of the fans. All in all, it's pretty much the perfect comic book/superhero movie and the epitome of how all blockbusters should be made, filled with a little bit of everything to make this an unforgettable cinematic experience that will be discussed for decades to come.