Other mistake: When Harry is being spun round on the ceiling fan you can see that they aren't moving fast enough to hold his body in a stretched out position,especially considering his bulk.
Other mistake: In the beginning of the scene where Gage is killed by the Orinco truck, the truck leaves the plant. The number on the trailer is marked T-80. In the scene, the truck rolls over in the accident. In later scenes where Rachel hitches a ride home with another Orinco truck, the number on the trailer is also marked T-80.
Other mistake: Fletch complains to Frank that he needs a vacation. Frank replies that he gets one in July, which is 2 months away, making the present day somewhere in May. He later gets a call stating he inherited an estate. Amanda meets with him and is later murdered. The documentation shows she was cremated on March 5, 1989. The cremation should be in May.