Because I didn't clearly remember the character's name in Fight Club, this made me initially think of kind of a superposition of Brad Pitt as Tyler in Fight Club and as Chad the personal trainer in https://en.wikipedia.org/wiki/Burn_After_Reading.
"Pitt...said when he was shown the script, he told the Coens he did not know how to play the part because the character was such an idiot: "There was a pause, and then Joel goes...'You'll be fine'."
"Pitt...said when he was shown the script, he told the Coens he did not know how to play the part because the character was such an idiot: "There was a pause, and then Joel goes...'You'll be fine'."