If you have a weak stomach, are at work or school, or young kids are around, do not watch trailer. It may upset you or them.
Buzzfeed has a synopsis of the journey of Little Favour (titled "Benedict Cumberbatch Is Beaten And Bloody In His Latest Project") in case you want a snazzy recap.
Teaser trailer for new Cumberbatch film Little Favour. I was lucky enough to play piano on it That aside, it's superb http://t.co/GAhA5UXXDg
— James Rhodes (@JRhodesPianist) September 20, 2013
Screen caps via tumblr if you can't watch the trailer right now.
For a producer moment that involves no violence, look here. :D
I missed seeing this update last month, but the mid-August news was about screening Little Favour.