Detective Sergeant Tom Brant (portrayed in this movie by Jason Statham) is a character in a series of novels by Ken Bruen. This movie is an adaptation of one of them.

The screenplay for this film was featured in the 2007 Blacklist; a list of the "most liked" unmade scripts of the year.

Aiden Gillen, Ned Dennehy and Paddy Considine were all in Peaky Blinders.

This movie has three Game of Thrones (2011) cast members. This includes Aidan Gillen (Weiss) who played Littlefinger, Ron Donachie (Cross) who played Rodrik Cassel and Joe Dempsie (Theo Nelson) who played Gendry.

First film starring Jason Statham and Luke Evans together. They will later play brothers in the Fast and Furious series.