Marvel is all set to release their biggest release of all time, Deadpool and Wolverine this July, and if you're a Deadpool fan, I know how excited you can be. Now, we all know that Deadpool doesn't exactly do very well with teams. Even after this, he has been a part of the X-Men occasionally in the pages of comic books, and it seems that he will do the same in Deadpool and Wolverine. But did you know that Deadpool appeared on screen even before his first standalone film in 2016? Here are all the appearances of Deadpool in X-Men movies and comics.

Many believe that Deadpool made his first theatrical appearance in the 2016 feature film. But this is not quite true. Deadpool's first live-action appearance was in X-Men Origins: Wolverine in 2009. Ryan Reynolds was cast and being a hardcore Deadpool fan, he was very unhappy with how the character was portrayed.

He already predicted the backlash this twisted portrayal of Deadpool faced and then went on to build a standalone franchise to portray Deadpool in comically accurate fashion. So technically, we should thank X-Men Origins: Wolverine director Gavin Hood for this flawed portrayal of Deadpool, because if it hadn't happened, we probably never would have seen the best live-action anti-hero movie series.

Contrary to popular belief, Deadpool was never officially part of the X-Men. Deadpool made his comic debut in The New Mutants #98 published in 1990. Now there are two major reasons why Deadpool is not in X-Men comics.