JK Simmons on Whiplash | BFI London Film Festival. Subscribe: http://bit.ly/subscribetotheBFI. Actor J.K. Simmons discusses Fletcher, the dangerously eccentric music teacher at the heart of Whiplash. He reflects upon the importance of enigmatic characters and his own real-life musical background. Filmed as part of the BFI London Film Festival in partnership with American Express®. View our BFI LFF playlist here: http://bit.ly/1sdiv4m Watch more on the BFI Player: http://player.bfi.org.uk/ Follow us on Twitter: https://twitter.com/BFI Like us on Facebook: https://www.facebook.com/BritishFilmInstitute Follow us on Google+: https://plus.google.com/+britishfilminstitute/