When it comes to Michael Shannon, you've probably been misled.
Are you thinking of the emotionally disturbed friend in "Revolutionary Road" (for which Shannon received an Oscar nomination)? The murderous government-agent-turned-gangster in "Boardwalk Empire"? The alien genocidal megalomaniac General Zod in "Man of Steel"?
The cool guy who strolls into the restaurant at the Four Seasons is nothing like them. He cracks a joke about the menu ("Asparago … if I ever have a son … 'Go forth, Asparago!'") and knows a certain wine is made of dried grapes.