Rumour Has It (2006)

Jennifer Aniston plays a woman who learns that her family was the inspiration for the book and film "The Graduate" and that she just might be the offspring of the well-documented event. She puts her upcoming marriage on hold long enough to investigate this shocking revelation and eventually comes to discover that the woman who was the muse for the legendary Anne Bancroft character, Mrs Robinson, is none other than her grandmother.

Official website: http://rumorhasitmovie.warnerbros.com/