Last Night's Parties: Will Ferrell, Jon Hamm Perform Comedy For Charity, Naomi Watts, Jessica Chastain Hit Their Premieres & More

Screening of Save The Date

Where: Sundance Cinema Who Was There: Alison Brie, Lizzy Caplan, Julianna Guill, Martin Starr, Elden Henson, Michael Mohan, Michael Roiff, Jordan Horowitz, Egan Reich, Kristin Slaysman, Yasmin Moaven, Kate May, Russell Francis, Patrick Hartigan, Samantha Geitz, Kelly Ahuja. Lizzy Caplan, Martin Starr, Alison Brie Alison Brie, Lizzy Caplan, Alison Brie [Photos Via]