Factual error: When the first half of the trailer is hanging over the cliff, the second half is pulled towards the edge. But the pull from the first half would be going downwards - in a 90-degree angle to the position of the first half. That would not pull the second half outwards, but more lift the end up. (00:59:35)
Factual error: When Roland is walking in the pouring rain and talking about killing the T-Rex, he has his gun slung over his shoulder vertically and barrel-upwards. If you were to do this in real-life in a tropical rainstorm for very long, you would run the risk of water entering the barrel and causing problems with the gun. And as a professional hunter Roland would know better. (01:07:50)
Factual error: After Ian and his girlfriend get the baby T-rex from holding in San Diego, they track down the big T-rex. They pull into a gas station and the Trex knocks the large 76 ball towards them. The problem with this is that that gas station/intersection is not in San Diego, CA but in Granada Hills, CA. The cross streets are Rinaldi and Balboa. (01:49:00)
Factual error: When the T-Rex grabs Eddie out of the car, as soon as it takes its foot off the hood the car shoots forward and both it and the trailers fall off the cliff. In reality this wouldn't happen, the trailers would have simply started sliding again slowly. It's also shown that the cars wheels start turning faster as the car picks up speed going forward. Eddie had the car in reverse, as soon as his foot came off the pedal it would have stalled meaning the wheels wouldn't have turned and instead it would have just been dragged like it was doing before he got back behind the wheel.
Suggested correction: If during the time Eddie was being dragged out of the car the clutch was pushed into neutral (it's a manual), all the force the car applied to keep the trailers from falling would have disappeared and basically any way for it to go slowly as well.
Factual error: In the last scene of the movie it shows the adult Tyrannosaurs and the baby. Then it shows a Pterosaur. If you put on subtitles it says [Pterodactyl shrieking.]. Those couldn't be Pterodactyls, since Pterodactyls were much shorter and had no crest. Those Pterosaurs are in fact Pteranodons.
Factual error: When Hammond is talking with Malcom about going to Site B he says that the departure is from San Diego which is "a couple of hours" away from there. A flight from San Diego to Costa Rica would take over 5 1/2 hours. Then there is the trip to the island.
Factual error: When Eddie is pulled from the car, it zooms forward and goes over the cliff. In reality this wouldn't happen. Right up until his death, Eddie had the car floored in reverse. Once he took his foot off the pedal the engine would have stalled. If a car is in gear and the clutch isn't depressed then the wheels won't turn (especially on wet mud!) The trailer would have had to drag the car but the wheels are shown turning freely.
Suggested correction: One of the T-Rexes has his (or her) foot on the car when Eddie is pulled out. The car could have been in neutral for a long time (accidentally), then when the Rex lets go the car is dragged.
Whilst what the guy above said is a possibility, he'd pulled the trailer up aways so there was no reason why the trailer just fell in a matter of seconds. It should have just started sliding again like before the car was even attached to it. So even ignoring the car the trailers shouldn't have fallen that quickly.
The jeep was able to hold the trailer in place without reversing for a short while. But eventually Eddie had to reverse to keep it from going over and even manages to pull it back a bit. When the car went into neutral and the T-Rex lifted his (or her) foot off it all the pressure and weight holding the trailer is gone so there is nothing to stop it from falling over. It had already slid quite a bit and the reversing was the only thing holding it, until the foot came along. With that gone the trailer just plummeted, not sliding anymore since there was nothing holding it anymore.
I think you've missed what the OP is saying. Before Eddie attached the winch to the Fleetwood (trailer) it was just sliding slowly and was doing for about a minute before he even attached the car. Once the car was attached it started dragging the car as it slid further off the cliff. The problem here is like the OP has stated, Eddie had pulled the FW back up a fair way. We see a tire go back up onto the cliff and get punctured in the process, it then cuts to an inside view from the FW and we can see it creeping forward slowly. When Eddie is pulled from the car, the FW drags the car off instantly, but in reality that wouldn't happen. Completely ignoring whether the car was in gear or not, the FW had been pulled back up a few meters. It would have slowly started sliding again and would have dragged the car like it did before Eddie got in and started reversing. Once the weight over the cliff became too much, only then would it drag the car off at the speed shown in the film.
