VIDEO: Dianna Agron Talks 'The Family' on GMA

GLEE's Dianna Agron stopped by ABC's Good Morning America to talk about working with Robert De Niro and Michelle Pfeiffer in the new film 'The Family,' opening in theaters today. "It was a dream come true," gushed the actress. Check out the appearance below!

The Family stars Robert De Niro, Michelle Pfeiffer, Dianna Agron, and John D'Leo. The film, directed by Luc Besson and written by Tonino Benacquista (novel), Luc Besson (screenplay) hits theaters on September 20th.

The dark action comedy follows a mafia boss and his family who are relocated to a sleepy town in France under the witness protection program after snitching on the mob. Despite the best efforts of Agent Stansfield (Tommy Lee Jones) to keep them in line, Fred Manzoni (Robert DeNiro), his wife Maggie (Michelle Pfeiffer) and their children Belle (Dianna Agron) and Warren (John D'Leo) can't help but revert to old habits and blow their cover by handling their problems the "family" way, enabling their former mafia cronies to track them down.

Chaos ensues as old scores are settled in the unlikeliest of settings in this darkly funny film.The Family follows the Manzoni family, a notorious mafia clan, is relocated to Normandy, France under the witness protection program, where fitting in soon becomes challenging as their old habits die hard.