Leighton Meester & Gillian Jacobs Can't Contain Their Smiles at 'Life Partners' Premiere!

Leighton Meester and Gillian Jacobs buddy up while walking the red carpet at the premiere of their movie Life Partners on Tuesday (November 18) at the ArcLight in Hollywood.

The ladies were joined at the event by their co-star Greer Grammer.

Life Partners follows two codependent best friends – one straight girl, one lesbian – and the man who comes between them.

FYI: Leighton is wearing a Cushnie et Ochs dress, Oscar Tiye shoes, and an Amanda Pearl clutch. Gillian is wearing a J Mendel dress, Jerome C. Rousseau shoes, Graziela Gems ring, and a Vita Fede collar.

15+ pictures inside of Leighton Meester and Gillian Jacobs at the premiere…