Cage: [Being strapped into the power armour] I've never been in one of these before!
Griff: I've never been with two women at once either, but if that day ever comes, I'll make it work.
The dam where the Omega is supposed to be hidden first is identified as being located in Germany. In reality, it's the dam at Lai da Curnera in Switzerland. In the German dubbed version, it is correctly identified as being in Switzerland.
During the prologue of the movie where Cage is giving doing media interviews, there is a scene where he's obviously green-screened in front of the NORAD control center taken directly from WarGames.