During the scene where Flint visits Polo's 'hardware guy', he uses a laser-guided gun to target him. The sound effect used for the mechanical movement is taken from RoboCop (1987).
Jean-Claude Van Damme and Scott Adkins would also appear in The Expendables 2 (2012) and Universal Soldier: Day of Reckoning (2012) the following year. They also appeared in the Shepard. Both have also played the lead role in different entries in the Hard Target franchise.
Scott Adkins, Ivan Kaye, Michael Higgs and Andrew French have all starred in the English BBC Soap EastEnders (1985) at some point in their careers.