noun
1. Awareness, realization, or knowledge; notice; perception.
2. Law.
a. Judicial notice as taken by a court in dealing with a cause.
b. The right of taking jurisdiction, as possessed by a court.
c. Acknowledgment; admission, as a plea admitting the fact alleged in the declaration.
3. The range or scope of knowledge, observation, etc.: Such understanding is beyond his cognizance.
4. Heraldry . A device by which a person or a person's servants or property can be recognized; badge.
EX. Joss Whedon's The Avengers is the most important super hero movie of all time because it simultaneously captured the style of story-telling in comic books and the coolest/funnest elements of that medium in a way that it had never been achieved. I'd argue that this was the closest experience that non-comic book fans can get to that of reading/enjoy comic books. This cognizance between fans of these heroes, from the most hardcore reader to the older tv fans to the littlest kid, is what makes this film stand alone amongst three decades of super hero movies.
Also, in my humble opinion, this is the only time television or film has captured a live-action hulk without being embarrassing or boring.
Sure, the movie has problems; all comic books do. Even the very best comic books have plot holes. Its practically part of the media; part of the price of admission is enjoying the comic despite the occasional gap in the story or stupid moment. Its about the big picture.