Robert Downey Jr.'s anticipated cameo in 'Deadpool & Wolverine' was cut due to his new role as Doctor Doom, as revealed by co-writers Rhett Reese and Paul Wernick. They had originally scripted a scene featuring Downey Jr. alongside Ryan Reynolds and Jon Favreau, where Deadpool seeks to join the Avengers. However, the writers were unaware of Downey's Doctor Doom casting at the time, leading him to decline the cameo. The film, directed by Shawn Levy, is notable for being Marvel's first R-rated entry and features over-the-top humor and violence. Despite the absence of Downey Jr., the film has been well-received, with Reynolds and Levy praising the creative freedom given to them. The movie includes numerous cameos and comedic elements that reflect its edgy style, maintaining the franchise's unique tone.