Answer:
Spiderman illustrates the technique of dramatic irony because the audience knows something that the characters in the film do not know.
Explanation:
In this film, there is dramatic irony because the audience knows that Peter Parker is Spiderman but the characters in the film do not know this since Peter Parker hides it by living in an ordinary house with a bedroom decor that is according to his age.
In other words, dramatic irony creates an irony that is necessary for the film since it is giving us information that the characters do not know.