The rest of the movie is as apparently aimless as "Slacker" was -- in fact as a whole "Fast Food Nation" comes off as "Slacker 2006: Shit Don't Seem So Funny Any More." Greg Kinnear and Bruce Willis are pretty great -- the little takes Kinnear does when he sits down with a hamburger, where he has to force himself to think about what's actually in it, are perfect. Willis basically comes in to deliver a monologue, which in a talky Linklater film can be a real weak point. But Willis is an amazing actor when he's not being a tabloid idiot, and the way he completely catches the tone of an amoral corporate badass is scary and every bit as ugly as the skinned heads of cows at the end of the movie.
The politics of the movie are kind of Austin-hippie downbeat, and really beside the point. The scenes with the Mexican workers in the slaughterhouse show the message better than amount of white-kid would-be revolutionaries slouching around flapping their gums about corporate greed and dishonesty.