O diretor confirmou em uma entrevista que ela realmente explodiu.
MTV: We all remember the scene where the medics realize that Marlena was bitten by one of the little monsters. They pull her behind a see-through curtain, and then there’s blood all over the place. What happened there?
Reeves: She explodes. All of the medical technicians and all of the military start reacting to the realization that she has been bitten, because other people had been bitten and had horrible fates befall them. If you watch closely, you’ll actually see one guy in particular get wheeled [past the camera], and his innards have exploded from the inside-out. … Apparently, there is quite a bad effect from the venom of these little parasites.
MTV: So once these things bite you, you’ll begin to swell and eventually explode.
Reeves: Yeah, it has a bad effect. It’s not something you would want to partake in.