UNITED NATIONS (AFP) - Sean Penn and Robert De Niro joined stars who appeared Monday at the UN headquarters for the US premiere of a contested movie on the Middle East conflict that Israel tried to get cancelled. Penn, De Niro, Josh Brolin and Steve Buscemi turned out to support award-winning American-Jewish director Julian Schnabel at the premiere of Miral, the story of two Palestinian women after the creation of Israel in 1948. The Israeli mission to the UN had said that showing the movie in the UN General Assembly hall was clearly a politicized decision that shows poor judgment and a lack of even-handedness. But UN General Assembly president Joseph Deiss of Switzerland turned down the Israeli request to cancel the event. A spokesman said Deiss hoped that showing the film would contribute to a settlement in the Israeli-Palestinian conflict. Schnabel, who was awarded the best director at Cannes in 2007 for The Diving Bell and the Butterfly, praised the UN decision at the start of the film and called his film a cry for peace. The film, with Indian actress Freida Pinto of Slumdog Millionaire fame in the lead role, is based on an autobiographical novel by Palestinian journalist Rula Jebreal that traces the Arab-Israeli from a Palestinian perspective.