Other mistake: In the slaughterhouse scene, after Harrigan has injured the Predator with his shotgun and Keyes reappears, the Predator throws its disc, and severs Keyes in half at the waist. We see his legs flop to the ground, and blood pour from above, but his upper half (torso, backpack and weaponry) mysteriously remain hovering out of sight. (According to the director, the MPAA made him cut the footage of the top half of his body hitting the ground because it was too gory, creating this odd error). (01:21:50)
Other mistake: When Marty returns to 1985 from 1885 the time machine is destroyed by a train. What is strange is that not only does the train not stop (which is mandatory in the event of an accident) but there is also no reaction from people nearby, such as those in the vehicles waiting to cross the track at the level crossing. Later, when Marty returns to the site with Jennifer, there is still no sign of police officers or other officials.
Other mistake: In the scene after Arnold kills the construction hoods he goes home to Sharon Stone and tries to convince her that it was real by showing her his bloody hands with which he was grabbing her shoulders, yet there is no blood on her or the appliances he turned off upon entering the apartment.
Other mistake: Why do the good guys keep shooting 2.75in unguided rockets to kill the enemy aircraft? These are designed to kill lightly armored vehicles and trucks on the ground. You would have about as much luck with those as with chucking rocks at planes. There are infared (heat-seeking) Stinger missiles on the wing pylons, we see Billie pull one off and attach the hand held unit to shoot down a jet. Why aren't they using those?
Other mistake: When the Political Officer reads the orders, they're supposed to test the silent drive and return home "on or about the 16th of this month." Shortly afterwards, Jack Ryan is briefing Jeffrey Pelt, and asks "isn't it the 23rd?", meaning the 16th of the month is in the past.
Other mistake: When Bastian and Atreyu gets to Xayide's castle, laser beams are are searching the ground for the intruders. Right before Bastian gets hit by the laser we see him running for Atreyu. Then we see light (obviously from a spotlight) being switched on and hitting the rock which Bastian jumps on. However we see the light from the spotlight move out of position as if the person controlling the spotlight thinks that Bastian will run further off the rock. When it cuts the light is back on Bastian and the rock. (00:39:00)
Other mistake: Dunbar has to race back to the fort in the middle of having a shave. The amount of soap on his face alters shot to shot.
Other mistake: In the scenes that take place in populated areas, there are never any people seen anywhere in the streets. Not even during the "high-speed chase" (where the thugs' car does not quite manage to catch up with Troy on his ten-speed bike) in the town do you see anybody.
Other mistake: Despite being Australian citizens neither McLeach nor Cody possess an Australian accent.
Other mistake: The official FBI database lists Diggs by his full name, "Diggins, Alan", followed by the Diggs alias, but Sorenson for the Feds is simply "Sorenson, E.", no first name given. He can't have been convincted and served time without even a full name. (00:14:30)
Suggested correction: We don't actually know if the disc completely cuts Keyes in half (or just passes through him and leaves a gaping hole). You see the blood, but the movie is edited so that it cuts back to Harrigan looking on in horror for a split-second, then back to Keyes' body on the floor (mostly obscured by a cement pillar).
They blatantly show his legs hitting the ground without the top half! I can only assume you watched an edited-for-TV version or something. It's VERY clear in the movie that he was cut in half. (In actuality, the scene was the victim of the MPAA according to the director... they had to cut the bit where the top half of his body hit the ground because it was too gory... creating this odd movie mistake).
TedStixon