Which way is the frontline from here?, is a film by journalist Sebastian Junger about his RESTREPO co-director British photojournalist and filmmaker Tim Hetherington. Hetherington was sadly killed in Libya in 2011. I, unfortunately, only became aware of Tim's work following his death. He had a particular interest in portraying those affected by war, both soldiers and civilians, away from the action. The documentary should be a fascinating, if sad, portrayal.
Despite my best Google technique I can't find any cinemas currently showing this film in the UK. I would suggest you follow the film's Facebook page.