EDEN PRAIRIE, MN— Despite his best intentions, moviegoer Brad Schuyler failed to make his snack supply last beyond the opening credits of Monsters, Inc. Monday. "The Harry Potter trailer came on, and I guess I just got excited," said Schuyler, 26, who took his last bite as the words "Written By Dan Gerson" appeared on the screen. "Maybe I should have bought more than a box of Sno-Caps and a 32-ounce Coke, but the stuff costs so much." Next time he sees a film, Schuyler said he will not start eating until the studio logo appears.