In this satire, a group of bumbling, fundamentalist suicide-bomber wannabes who couldn’t organize a backyard firework display to save themselves plan to execute a terrorist attack in the heart of London—as long as they don’t accidentally kill themselves first.

Irreverent and sardonic, Brass Eye’s Chris Morris crafted a controversial, pitch-dark comedy that dares to poke fun at terrorism. As insensitive as it is hilarious, you may have trouble deciding whether to be offended or impressed by Four Lions—and what exactly is wrong with being both?