Producers of Stonewall said Tuesday that the gay drama would open on September 25.

Stonewall tells a fictional story about a young man's political awakening set against the backdrop of the early days of the modern gay rights movement. Historians often credit the June 28, 1969 police raid of the Stonewall Inn in Greenwich Village as a major flashpoint for the movement. While such raids at the time were common at gay bars, patrons on this night, many of whom were drag queens, resisted arrest.

The film arrives at a pivotal moment for the movement, which is moving from fighting for marriage equality to protecting the right from opponents who wish to dilute it.

In announcing the film's upcoming release, director Roland Emmerich (Independence Day), who is openly gay, talked about how the Stonewall Riots sparked a movement.

“It was the first time gay people said ‘Enough!'” said Emmerich in a statement. “They didn't do it with leaflets or meetings, they took beer bottles and threw them at cops. Many pivotal political moments have been born by violence. If you look at the civil rights movement, at Selma and other events of that kind, it's always the same thing. Stonewall was the first time gay people stood up and they did it in their own way. Something that really affected me when I read about Stonewall was that when the riot police showed up in their long line, these kids formed their own long line and sang a raunchy song. That, for me, was a gay riot, a gay rebellion.”

“What struck me was that there was a story in there, which I felt had an important message – it's the people who had the least to lose who did the fighting, not the politically active people. It was the kids that went to this club that consisted of hustlers and Scare Queens, and all kinds of people that you think would never resist the police, and they did it,” he added.

The film stars Jeremy Irvine, Jonny Beauchamp, Jonathan Rhys Meyers and Ron Perlman.