Harriet the Spy is a 1996 American coming-of-age comedy film directed by Bronwen Hughes in her feature film directorial debut, and starring Michelle Trachtenberg in her major film acting debut. It co-stars Rosie O'Donnell, J. Smith-Cameron, Gregory Smith, and Vanessa Lee Chester. Based on the 1964 novel of the same name by Louise Fitzhugh, the film follows a sixth-grade student who aspires to become a writer and spy.