Few films have defined a generation as much as The Graduate did. The alienation, the nonconformity, the intergenerational romance, the blissful Simon and Garfunkel soundtrack--they all served to lob a cultural grenade smack into the middle of 1967 America, ultimately making the film the third most profitable up to that time. Seen from a later perspective, its radical chic has dimmed a bit, yet it's still a joy to see Dustin Hoffman's bemused Benjamin and Anne Bancroft's deliciously decadent, sardonic Mrs Robinson. The script by Buck Henry and Calder Willingham is still offbeat and dryly funny and Mike Nichols, who won an Oscar for his direction, has just the right, light touch. --Anne Hurley,