After long wait, we finally have the first teaser trailer of Marvel’s upcoming superhero film Avengers: Infinity War; and from the teaser, this seems to be shaping up as one of biggest Marvel movies ever.

First things first, if you are a casual superhero fan, first trailer of Avengers: Infinity War might not seem to be a big deal; because lately, every movie seemed to be Avenger-themed where superheroes team up to play supporting roles and fight against evil. For example, Captain America: Civil War, Spider-Man: Homecoming, and Thor: Ragnarok. But for a die-hard fan or someone who is at least enthusiastic about these fictional movies, well the Avengers: Infinity War is Marvel Comic’s biggest gambit yet. First, because it is lead to Marvel’s “Phase 4”, which will evidently form different squads of heroes and villains.

Another huge reason is that the movie comes with some of the series’ biggest stars nearing the end of their contracts, including Robert Downey Jr. and Scarlett Johansson. So it most likely to be one of our favourite star’s last appearance on a Marvel movie, and our last chance to see them in action, before retirement from Marvel – assuming they don’t kill each other first. And that is a major, major change for real fans, and it is a big deal which makes Avengers: Infinity wars a super special movie, and so does its first trailer.

Apart from a looming farewell to some of our favourite superstars, it will bring rise to a new generation. But before that, the Marvel team’s goal is to strike a heroic pose to commemorate 10 years of unprecedented moviemaking success. Avengers: Infinity War will unite the Avengers, the Guardians of the Galaxy, and almost every other superhero Marvel has ever put on-screen in the 17 prior films over the last decade. All these heroes are banding together to face off against Thanos, the big bad that Marvel has been teasing since the post-credits scene of the first Avengers back in 2012.