Emily Blunt and Jason Segel Pictures at 5 Year Premiere

Emily Blunt and Jason Segel teamed up for the NYC premiere of The Five-Year Engagement at the city's Ziegfeld Theatre last night. The screening served as the official opening of the Tribeca Film Festival — check out all the stars from past Tribeca Film Festivals as we celebrate the start of the annual cinema event! Emily paired a Jason Wu dress with a bright pair of Alice + Olivia pumps. Emily and Jason were joined by their costars Alison Brie and Dakota Johnson.

Other stars turned out for the opening, including Julia Louis-Dreyfus, Leelee Sobieski, a Jason Wu-clad Camilla Belle, Kim Cattrall, and Olivia Wilde in Yigal Azrouël. Festival founder Robert De Niro was on hand with his wife, Grace Hightower. Funny ladies from Parks and Recreation, Aubrey Plaza and Amy Poehler, dressed up to take in Jason's latest hilarious movie, and also to support their small-screen costar Chris Pratt, who's in Five-Year, but couldn't make its debut.

The screening was in honor of Emily and Jason's big-screen romance, but he also had his real-life love there, too. Jason Segel and girlfriend Michelle Williams reportedly got cozy once inside the Ziegfeld and later at the Museum of Modern Art afterparty. Jason even talked about the possibility of marriage on the red carpet, telling reporters, "I hit my 30s and enough became enough. I'm ready to enter phase three. I put the puppets into a closet. I'm getting nice furniture."