Simon Amstell on his vegan sci-fi Carnage: "If we keep eating animals it's going to get awkward"

The writer and director of a mockumentary about a future society looking back at a time when mankind used animal products tells Mark Kermode why mass veganism is an inevitability. Subscribe: http://bit.ly/subscribetotheBFI. Watch more on the BFI Player: http://player.bfi.org.uk/ Follow us on Twitter:   / bfi   Like us on Facebook:   / britishfilminstitute   Follow us on Google+: https://plus.google.com/+britishfilmi...