Brexit, starring Benedict Cumberbatch as the real-life man who orchestrated the historic campaign, will debut Saturday, Jan. 19 after HBO acquired the TV movie, which was commissioned by British broadcaster Channel 4. HBO announced the premiere today, while releasing a U.S. trailer that gives a first look at the film.

As Dominic Cummings, who spearheaded the Vote Leave campaign, Cumberbatch delivers one of the trailer’s most telling lines, explaining to a colleague that the Brexit movement is about returning “to a time when we knew our place, when things made sense, fictional or not.”

During what appears to be a focus group of some sort, Cummings asks, “Which countries don’t you like?”

In addition to Cumberbatch, Brexit features Rory Kinnear as Craig Oliver, Prime Minister David Cameron’s director of communications and head of the Remain campaign.

The feature-length drama goes behind the scenes, “revealing the personalities, strategies and feuds of the Leave and Remain campaigns. The tactics employed by Vote Leave during the data-driven campaign swayed a historically silent voting bloc that would ultimately decide the outcome of the referendum, as well as affecting future elections around the world.”

Brexit is directed by Toby Haynes, written by James Graham and executive produced by James Graham, Juliette Howell and Tessa Ross. Lynn Horsford is producer, and the film is a C4, HBO Films, BBC Studios and House Productions presentation.

Brexit debuts in the UK on January 7 and in the U.S. pn Saturday, Jan. 19, at 9 pm ET/PT on HBO. Check out the trailer above.