The "Deadpool" movies have been a hit with audiences, featuring kick-butt moves, dirty jokes, and fourth-wall-breaking moments. The films ranked fourth and fifth on a list of Tinseltown's top-grossing R-rated films, with "Deadpool & Wolverine" taking the top spot. However, before joining the Marvel Cinematic Universe, Deadpool made a less-than-stellar appearance in 2009's "X-Men Origins: Wolverine," where his mouth was sewn shut and he had different powers. The decision to mute Deadpool was met with confusion and criticism, with the studio defending the choice as a way to avoid cheesy dialogue during fight scenes.
Source: https://www.looper.com/1759631/deadpool-different-wolverine-origins-mcu/