The Tribeca Film Festival is underway in NYC and many stars came out over the weekend for premieres and afterparties. Naomi Watts and Liev Schreiber hit the red carpet for a screening of Liev's Every Day, while Selma Blair was there to support Rashida Jones' Monogamy. Kirsten Dunst's directorial debut, starring Brian Geraghty, was a big draw on Friday and Alexander Skarsgard left Kate Bosworth and her bikini for an evening to promote his Metropia. The festival organiser, Robert De Niro, was also at a handful of the events—and at one stage he was spotted hanging out with Juliette Lewis and Vince Vaughn. While Naomi's fellow countrymen Miranda Kerr and Guy Pearce also attended. Click through to the pics to see who else was there!