The Palestinian filmmaker Emad Burnat, the co-director of the Oscar-nominated documentary “5 Broken Cameras,” was detained at Los Angeles International Airport on Tuesday.

Mr. Burnat, who had flown to Los Angeles for the Academy Awards on Sunday, was released after questioning, a representative for the film confirmed to The Los Angeles Times and other news outlets. The incident drew wide attention after Michael Moore, a supporter of Mr. Burnat’s film, posted a string of messages on Twitter late on Tuesday.

According to Mr. Moore’s posts, Mr. Burnat, 41, was detained with his wife and 8-year-old son for an hour and a half even after they produced his official Oscar invitation. He then texted Mr. Moore, who wrote that he called Academy officials, “who called lawyers.”

“I told Emad to give the officers my phone # and to say my name a couple of times,” Mr. Moore wrote. “After 1.5 hours, they decided to release him & his family & told him he could stay in LA for the week & go to the Oscars. Welcome to America.”

According to Mr. Moore’s Twitter posts, Mr. Burnat told him: “It’s nothing I’m not already used to. When u live under occupation, with no rights, this is a daily occurrence.”

Mr. Burnat, a farmer from the West Bank village of Bilin, assembled “5 Broken Cameras” partly from digital video footage he shot during protests over the destruction of Palestinian olive groves in connection with the Israeli military’s plans to build a barrier between Bilin and a nearby Jewish settlement. The film, which was co-directed by the Jewish Israeli filmmaker Guy Davidi, won the World Cinema Documentary directing award at the Sundance Festival last year.