Tribeca Studios has set a Sept. 11 Netflix debut for Matt Tyrnauer‘s Tribeca 25 documentary about the post-9/11 origins and history of the festival.

The trailer, which The Hollywood Reporter is debuting exclusively below, opens with De Niro reflecting on the city before the 2001 terrorist attacks.

“To me, New York is the most cinematic city in the world and the towers, they were always there, and then one day they were gone,” the Tribeca co-founder says. “You couldn’t even comprehend the enormity of it. It was devastation downtown.”

Festival co-founder Jane Rosenthal adds that she and De Niro “wanted to help” and do something “to fight back” as they began working on the festival as a way to revitalize downtown Manhattan.

From there, the trailer includes glimpses of the early days of the festival and the opening night ceremony from the first festival in 2002, a five-day showcase of 150 films, as figures like Martin Scorsese, Meryl Streep and Whoopi Goldberg get involved.