http://www.artofthetitle.com/title/deadpool/
Deadpool is a comic superhero movie, it is known as comic film which breaks the fourth wall. The fourth wall is a performance convention in which is an invisible, imagined wall which separates actors from the audience. However Deadpool and the main actor breaks this by talking to the camera/ audience. This film came out in 2016, and was very popular not only from Ryan Reynolds starring, and the comedy in all the trailers, but also from the 'viral' videos the came out once a day in December, and in each video Deadpool himself would addresses a different topic for example on 'World Australia Day' and 'Valentines day'.
By having the opening title as a fake one makes the audience realise this isn't going to be a normal superhero film. Here is what the director Tim Miller, and layout super visor Franck Balson said about the fake opening title, and how they managed people to see whether it was a joke or not.
Tim: The screenings were so informative. You get to see when and where the audience laughs. And the magazine cover gets a huge laugh…
Franck: Only at a certain spot though!
Tim: It’s true. We had it later and it didn’t hit.
Franck: We had it earlier, but what we realized was that Ryan’s cover was kind of the moment everything shifted completely into meta, where people were like “Oh my Gosh! This is a fake title sequence!” When we tried the cover later people were still trying to analyze the title sequence as if it was a real one and didn’t understand the jokes.
You can tell this is a fake opening title because unlike in a normal opening they would show the name of the actors and be professional about it, however they say 'starring a hot women and a moody teen'. This straight away tells the audience that it is fake and that the whole movie will be taking a dig at normal superhero films. They also seem to make fun of the main actor by showing old magazines covers of himself being named 'sexiest man alive 2010' and a card of him wearing the Green Lantern costume as Ryan Reynolds also played that superhero in the past.