Htydjtk

In the end credits scene, Deadpool goes back in time to change a few things using Cable's time traveling technology. He goes to the apartment building where a 10-year younger Ryan Reynolds sits holding the Green Lantern script in his hands. Deadpool shoots him in the head and says

You're welcome, Canada.

What is the reference behind this line? What does it mean?

Ryan Reynolds repeatedly kept saying, that he is less than happy with his appearance in the 2011 "Green Lantern" movie - he even admits that he has never seen it

Ryan Reynolds provided this explanation to EW, highlighting how although there were a lot of people working hard to make Green Lantern successful, Warner Bros was more concerned with releasing the movie rather than making sure the script was perfected before starting. That meant there was never an opportunity to nail down what the movie's tone was supposed to be, making the final product feel generic

So Deadpool, by killing Ryan Reynolds (a Canadian born in Vancouver) before he accepted his role in the Green Lantern, saved the whole country from the embarrassment of a Canadian actor in the movie.

Ryan Reynolds is Canadian by birth, therefore, he uses this line as a reference. He was born in Vancouver, British Columbia, Canada.


He is not very fond of the Green Lantern movie as is seen in many of his interviews. He also stated it in Deadpool first movie when he said that don't make the suit green or animated. He thought that it was a mistake to take that role and accept that script.
So, Deadpool 2 has this scene where Deadpool shoots Ryan Reynolds reading Green Lantern script. Thus, Canada his home country is saved from the embarrassment of having him as its lead hero.