Religious leaders are slamming a documentary to be shown at the nation’s premier 9/11 museum because it might make people believe Islam was responsible for the attacks that killed nearly 3,000 people.

Already the lone imam on an interfaith advisory group to the National September 11 Memorial Museum has quit in protest at the seven-minute documentary.

“Unsophisticated visitors who do not understand the difference between al-Qaida and Muslims may come away with a prejudiced view of Islam, leading to antagonism and even confrontation toward Muslim believers near the site,” Sheikh Mostafa Elazabawy, the imam of Masjid Manhattan, wrote in a letter to the museum director.

But the museum stands by the film, narrated by NBC News anchor Brian Williams. “We have a very heavy responsibility to be true to the facts, to be objective, and in no way smear an entire religion when we are talking about a terrorist group,” Joseph Daniels, president of the nonprofit foundation that is overseeing the museum, told The New York Times.

The film, “The Rise of Al Qaeda,” seeks to explain the historical roots of the 2001 attacks on the World Trade Center and Pentagon, reports the Times. It will be shown to visitors in a part of the museum next to a gallery with photographs of the 19 men who hijacked four planes.