In the film Deadpool 2, the main character Deadpool is able to break the 4th wall throughout the film. usually in films, this is used to either give extra context to the audience with complicated events in the film, r it’s used for comedic effect. In this film, it’s used mostly for comedy, but also sometimes used to give context about Deadpools past and his feelings about whats happened. For example, he breaks the fourth wall in order to tell the audience how he got his powers, but he mostly uses it to tell the audience a joke or talk about another character in a comedic way.