I will use the same reply for everyone who answered my question (except for the one answermugger who correctly answered all three of my recent movie questions):
this one is director Gus Van Sant's "Elephant"
Wow - - what a movie!!
no plot spoiler here- -
Disturbing subject matter: The movie is about a high school shooting. But Van Sant's cast and his directing style are flawless to me! -- the 'camera style' is in "real time" -- the camera literally follows the highschoolers from class to class, and throughout their day school / etc. For instance, the guy in the picture here - -the camera follows him from the field through his entrance into school building. This style works so well for me as a movie watcher in this particular movie with this particular subject matter. Thanks for answering, my2cents! :)