There’s all kinds of work to be done before starting on a movie. In addition to preparing for the role, many roles require the actor to get into shape physically. Your first assumption here is to think that means working out. Most of the time. Some of the time it’s about your face. And this is not just the women.
Before starting on his upcoming blockbuster, producers were concerned after test shots that he looked too unnatural and puffy. They asked him, rather directly, to have his fillers dissolved. It’s an action movie after all, he can’t be looking dewy and plump like he’s at the spa while he’s doing all those action sequences. In order to speed up the process he first switched over to a detox diet to lean out and then he went back to the doctor to deflate his face. In my opinion he’s really better off for it. So, just in case you didn’t already know, in Hollywood, the actors are doing it and OVER doing it just as much as the actresses.