Last Night's Parties: Sienna Miller And Dree Hemingway Head Out East For HIFF, Lena Dunham Helps Close Out New Yorker Festival, And More!

by Samantha Hui · October 8, 2012

[Dree Hemingway, Sienna Miller, Mary Elizabeth Winstead]

Over the weekend in New York, Sienna Miller, Dree Hemingway and Alec Baldwin headed out to East Hampton for the Hamptons International Film Festival, Lena Dunham and Christian Louboutin chatted at panels at the New Yorker Festival, Brooks Brothers helped Stephen Colbert celebrate his new book and more!