Revealing mistake: When the doctor intercoms the colonel because he cannot get into the medical room for the pregnant woman having nightmares, the camera shows the intercom, which is simply the back end of a desktop computer with a couple of knobs stuck on it. (00:24:50)
Revealing mistake: In the scene where Joey is arrested, they handcuff him. When the police pulls him on his feet, you can see that the handcuffs are not on, but the officer is just holding them. (01:36:05)