Daniel Radcliffe plays an FBI agent who infiltrates a gang of white supremacists in Imperium , and we’ve got our hands on the film’s UK poster as well as some behind-the-scenes pics.

Radcliffe behind-the scenes.

Radcliffe plays FBI Agent Nate Foster...

...who infiltrates a gang of white supremacists.

Toni Collette plays FBI agent Angela Zamparo.

Imperium hits US screens this week and is released in the UK on September 23, with the official synopsis as follows.Inspired by real events and the experiences of ex-FBI agent Michael German, Imperium follows Nate Foster, an idealistic young FBI agent who is selected to go undercover amongst a group of white supremacists suspected of initiating a terrorist plot. Immersed in a deeply unsettling, hate-filled world, Nate must fight to maintain control of his own beliefs and principles whilst working to identify the threat and keeping his true identity and motives a secret.You can check out our review here , while poster and pics are below...

Chris Tilly is the Entertainment Editor for IGN in the UK. He can be found talking nonsense on The Superhero Show and Twitter