Kelly Nyks, an artist in residence at Harvard’s Derek Bok Center for Teaching and Learning, says four men were recently arrested in Manhattan for putting up posters promoting his new film, a documentary titled “Disobedience.” Nyks said the arrests occurred two days before the film’s April 29 premiere in New York City, and the four men were handcuffed by plainclothes officers, searched, and taken into custody. Nyks said one of the men was fined $200 and sentenced to 40 hours of community service. The other three have a court date coming up on June 7, he said. “Disobedience” is a film about the fossil fuel industry, climate change, social activism, and (not surprisingly) civil disobedience. The posters featured the lone hashtag #DISOBEY on a white background. “It wasn’t a conventional movie poster,” said Nyks. “It was a message . . . a political expression.” The film features bestselling author Naomi Klein, MIT professor Ceasar McDowell, and Marshall Ganz, senior lecturer at Harvard’s Kennedy School of Government. For a list of screenings, visit www.watchdisobedience.com.