SpiderMan- How do we know it is a superhero film?

In the 2002  Spider-man movie the audience can clearly work out the genre of  the film. This is done by a series of important conventions that people have come to associate with the superhero genre. Firstly, the Spider-man movie was set in New-York, most Marvel films are set here so audiences can associate with other superheros films that they may have watched. Also a big city like New-York would have more crime and destruction in than a small town  would, therefore it is more appropriate. If Spider-man was set in a small town with few people and buildings, then it wouldn't be as exciting and fast moving as a busy city. Secondly, the Spider-man movie shows us the origin of how Peter Parker got bit by a spider and turned into a spider-man. This is present in most superhero films. So allows the audience to actually know what is going on and gives us some background information on the hero's true identity. Leading on from identity, Spider-man wears a tight fitted full body suit and a mask. This relates to most superhero films because they wear clothes that are not worn by normal people, also they wear a mask eg Captain America. The mask hides the hero's (or Vilains) true identity from the world.  If his identity were a matter of public record it could possibly be accessed by his enemies and  it would place his loved ones in jeopardy. Lastly Spider-man has special powers, these include climbing abilities, strength and the ability to shoot webs from his wrists. We know we are watching a superhero movie if the main character has special abilities because they use these abilities to save the city from the villain. Every superhero has at least one special power that normal people would not. eg. The Hulk has super strength, Iron Man has a special suit that can fly and shoot bullets and bombs and Thor is a God and has a hammer only he can use to fight with. Therefore powers, costume and setting  are a key part of the superhero genre to ensure the right people are watching the film.