枪口之下剧情简介：枪口之下美国地区的于2016年上映，导演是Stephanie Soechtig，　　The Sandy Hook massacre was considered a watershed moment in the national debate on gun control, but the body count at the hands of gun violence has only increased. Through the lens of the victims' families, as well as pro-gun advocates, we examine why our politicians have failed to act. World Premiere