Along with the photographer William Eggleston and filmmaker Alan Clarke (whose 1989 TV film on Irish sectarian violence gave Elephant its title), the veteran American documentarian is cited by Van Sant as a major influence.
Filmed in long, languorous travelling shots (like Van Sant's Gerry, it's influenced by Béla Tarr, as well as the Alan Clarke film about sectarian murders from which the director took his title), sometimes slowing almost imperceptibly to savour a fleeting emotion, Elephant sucks us into the lives of some half dozen students.
The title comes from Alan Clarkes 1989 BBC short "Elephant," which is about school violence in Northern Ireland; Clarke is alluding to the saying that such a problem is as easy to ignore as an elephant in a living room.
It's ironic, perhaps, that shortly after Elephant's initial limited release in the States, Columbine authorities released a long sat-on videotape of Eric Harris and Dylan Klebold, with a couple of friends, target-practicing off in the woods.