Gerard Butler talks about being referred to as a "swaggering sexy jerk" for his role in Den of Thieves 2: Pantera, doing his Stoick the Vast voice from How to Train Your Dragon for fans and getting emotional while watching the live-action film. The Tonight Show Starring Jimmy Fallon. Stream now on Peacock: https://bit.ly/3gZJaNy Subscribe NOW to The Tonight Show Starring Jimmy Fallon: http://bit.ly/1nwT1aN Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35ET/10:35c Get more The