That's what at least four of Paul Greengrass's movies have been referred as. But what makes it that? The shaky cam? Lots of documentaries have a steady cam. In fact there are just as many on a steadicam, as there are movies on a shaky cam perhaps. The lighting in those movies is lit more like a movie more than a documentary, and they are directed from multiple angles, unlike documentaries were fewer angles are used. The sound is also very high budget Hollywood compared to documentaries. So what makes them documentary style exactly?