When you have a large cast, there are bound to be stories that emerge about the various personalities on set. When the film in question is Marvel Studios' Avengers: Doomsday, multiply those chances by a hundred. 20+ people will be featured in front of the camera, of varying celebrity status, and who may exhibit some potential diva behavior. That being said, sometimes non-stories escalate into scandalous rumors, as was the case with a recent report that claimed Robert Downey Jr. and Ryan Reynolds got into a heated argument while filming the superhero epic. As it turns out, this story of celebrity feuding wasn't true at all.

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