The Making of Deadpool & Wolverine, it was revealed that there was an initial idea to show that Deadpool ( Ryan Reynolds) had been in the background of the MCU the entire time, with all of his appearances being left on the cutting room floor.

While the ending of Deadpool & Wolverine may have left its viewers in complete awe, only a few people know that Blake Lively proposed a significant twist in the conclusion. While its unique brand of humor and well-crafted cameos garnered much praise from the audience,

Ryan Reynolds and Shawn Levy revealed on the “Deadpool & Wolverine” director’s commentary (via Games Radar) that the film’s ending changed thanks to a note from Blake Lively and less than two days of reshoots.

Ryan Reynolds revealed how his wife Blake Lively's response to 'Deadpool and Wolverine' inspired them to reshoot the ending

Blake Lively influenced the ending of Deadpool & Wolverine after she gave a note to her husband, Ryan Reynolds, and director Shawn Levy.