Eye in the Sky (2015)

A drone strike on militants in a Nairobi safe house is ready to go, until a young girl sets up near the target to sell her mother's bread. Gavin Hood's thriller then becomes a real-time seminar on risk, law and political cover, as Helen Mirren's colonel pushes for the strike and officials keep passing the decision up the chain. It works brilliantly for a group because the trade-off is stated so plainly: how much danger to one child is acceptable to stop a probable bombing? It was also Alan Rickman's last live-action film.