Ryan Reynolds sparked rumors about Deadpool's appearance in 'Avengers: Doomsday' with a social media post featuring a graffiti-ed Avengers logo. However, sources indicate he is not on set and won't appear in the upcoming films.

Editor’s Note: This matters because it highlights the ongoing speculation and excitement among fans regarding the Marvel Cinematic Universe. Ryan Reynolds' involvement could significantly impact the franchise, and fans are eager for any updates.