Continuity mistake: Near the end of the film, the writer seeks out one of the locals, and finds him in a corn field digging up pot plants that marijuana growers are trying to grow in his corn field. There is only one problem: It is supposed to be Spring, but the corn is all brown, thus it really is fall or early winter.
Continuity mistake: The heels on Barbara's shoes appear and disappear throughout the movie.
Continuity mistake: Earlier in the film Steven Seagal explains that in his lab they used plastic beakers because glass can cut the monkey suits.Later in his lab they are using pyrex beakers and when they clink together, they are clearly made of glass.
Continuity mistake: When Nick and Casey go into Ballpean's flat, nick is frisked by the bodyguard, who finds no weapon on him. Casey refuses to be searched. When a fight breaks out, Casey pulls out two pistols, so we understand how he smuggled them in, by refusing to be frisked. However, Nick pulls a machine gun out from under his jacket. There was no way he could have smuggled this in without the bodyguard catching him when he frisked him. It's a big gun too, which would have made it even more obvious if he tried to smuggle it in.