Max Fischer, the hero of "Rushmore,'' is an activity jock, one of those kids too bright and restless to color inside the lines. Although he's a lousy student, that doesn't stop him from organizing a movement to keep Latin on the curriculum of his exclusive prep school. His grades are so bad, he's on "sudden death probation,'' but in his spare time, he edits the school magazine and runs the fencing club, the beekeeping club, the karate team, the French club and the Max Fischer Players. With his bushy eyebrows and black horn-rims, he looks a little like a young Benjamin Braddock from "The Graduate.'' Max, played by Jason Schwartzman, has a secret. He's in the exclusive Rushmore Academy on a scholarship; his dad is a barber. Always dressed in a tie and snappy blazer (unless in costume for one of his activities), he speaks with an unnerving maturity and is barely able to conceal his feelings of superiority for the headmaster (Brian Cox) and other adults, who enforce their stuffy rules because they are not, and never were, able to work without a net the way Max can.