Gregory's Two Girls (1999)

Bill Forsyth returns to the romantic comedy of 'Gregory's Girl.' 20 years after his teenage crush on a football-mad schoolgirl, Gregory is back at his old school, teaching English. When two of his pupils uncover evil practices at a local factory they want their teacher to help them expose the wrong-doer, who happens to be Greg's old schoolfriend. Trapped between his idealism and breaking the law while trying to choose between two girls--a schoolgirl and a full-grown woman--Gregory still has some growing up to do.