The team gets into the SUV and Dr. Horowitz is wearing a Black tank style top with a strap across the back and a high panel in the front along with exercise pants. They reach the lot with the VW's all around and her top is suddenly a common Gray tank top and now she has on jeans and a utility style belt. A few minutes later and she is back in the Black outfit.
When the security team goes to pick up the doctor in the park he runs up an empty driveway. The shot cuts back and forth and suddenly there is an empty car in the shot, in the same driveway the doctor just ran up and the SUV passed through.
Lee and Dr. Horowitz go to rescue Lee's wife and daughter but when they get Roth out of the Armada, the wife and daughter are not in SUV and are nowhere to be seen.
When Dr. Horowitz is vivisecting a "spider" outside, the medium and longs shots show that she is not wearing gloves. But close-ups show her to be wearing blue vinyl gloves. Even worse, while sticking her hands repeatedly into alien guts, she touches her face repeatedly with her bare hands. All off this occurs after she is specifically ordered to examine the creature outside because no one knows what possible infectious agents it may be carrying.
The general refers to the name of the small yacht as the 'Intrepid Gull'. The name on the back of the boat actually reads 'Liquid Longe'.
When "Bugs" is attacked by the small "spiders" they show one attacking the glass window the shot shows her face cut before the creatures even break the glass.
Set in Florida on the Atlantic east coast of the USA, several scenes have mountains in the background which make up southern California. Florida has no mountain rangers nor does anywhere along the Atlantic east coast.
Set in Florida, several cars have California license plates.