[quote=“isdatnutty, post:1, topic:228154”]
or maybe just the illusion of that[/quote]
Many transformations are legit, but don’t underestimate this. Getting lean enough for some abs, tricep definition, and maybe a little biceps vascularity, plus a quick pump immediately before shooting a scene, likely transfers into looking great on-screen.
Like Pwnisher said, they have gigantic motivation/incentive to succeed. And they have an expert telling them how to train. And they have experts telling them what to eat and handling meal prep. Those three things are some of the biggest stumbling blocks that prevent results in most lifters, so when they’re eliminated, crazy stuff can happens.
Jason Walsh has talked about his work with Matt Damon for a few different films and Bradley Cooper for American Sniper. Actor Joseph Gatt talked about his training here.
A few T Nation coaches also had a roundtable years ago talking about what they’d do with a Hollywood client.