Their fighting escalates until Schwartzman is kicked out of school, Murray's wife files for divorce and Williams is forced to resign from her job at Rushmore. Oh, man, I'm shooting more spooge into my pants just thinking about the movie. Because this was a fully-realized character comedy. Almost every Goddamn character has a heart beating inside, like they are real people that make real decisions, and not the easiest choices that set up a fart joke, or boob shot. Nobody is a stock part from the Hollywood lame-o character bin.
Nobody is evil, but some are selfish and some are immature, and that's what drives the plot.
There's no glamour or Hollywood shine on the flick. We don't give a rat's ass if you don't like that. Nobody in this movie does that. The jokes, as absurd as they are, come naturally and believably. When Murray runs over Schwartzman's bike, you know he would have done that.