Scene stealer Matthew McConaughey

While he’s barely in the movie, Matthew McConaughey leaves quite the impression as L.F. Rothschild stockbroker Mark Hanna, due to his rhythmic chest-beating over lunch with rookie broker Jordan.

The actor used the move to get himself into the zone, and eventually opted to add his chest pumping and humming to the scene.

He recalled: “That’s something I'll do to relax myself, get my voice to drop. I've been doing it for a while, but it's just something I do.”