"Glee" star Agron looked elegant in a black dress with white capped shoulders. Pfeiffer also opted for black, wearing a similar styled but sleeveless dress.
The film centers on a Mafia boss and his family, who are relocated to a quiet town in France under the Witness Protection Program. Chaos ensues as their former Mafia cronies try to track them down.
"The Family" is now in theaters.
Check out more photos from the premiere...