The building used to film the school scenes was used to film the police station scenes in The Fall (2013), also starring Gillian Anderson.
Mediator 452 uses the same voice modulating effects found in the video game Portal (2007) for the character GlaDOS.
The robot's cube shaped spaceships is a plausible nod to the Borg Cubes in Star Trek: The Next Generation (1987) and Star Trek: First Contact (1996).
Connor is a nod to John Connor from The Terminator films. In those movies, John Connor is the leader of the human resistance that is fighting back against Skynet and the Terminator robots that are bent on exterminating the human race.