Character mistake: Fitch, who professes qualifications in biology, genetics and biochemistry, says that they made Sil female because she's a natural predator and so she'd be more docile. In almost every species of predator on earth the females are the hunters, aggressors and killers. The males may be socially dominant but they are the 'docile' ones. There are exceptions but Fitch speaks as if female and docile are the same thing - and they definitely are not.
Suggested correction: This entry is so wrong, I don't quite know where to begin. The idea that all species, without exception, have the females as the aggressors and the males as docile is absolutely one of the most ridiculous things I have ever read. It is not backed up by fact in the slightest. They also did use human DNA; they added the sample of alien DNA to it to create Sil.
The posting states that there are exceptions to the rule and specifically states "almost every species." The mistake is not that a female must be "docile". It is that a scientist professing qualifications in biology, genetics, and biochemistry would make such a stupid statement, believing it to be invariably true.
Suggested correction: They never said Sil was a natural predator when they created her. She was half human and half alien and it was their belief that human females are more docile (i.e. more motherly, more gentle, more empathetic, and less aggressive than human males). Although the reply to "more docile and controllable" was "you guys don't get out much", meaning that girls aren't that docile and controllable.
Continuity mistake: The BMW that Sil takes after killing the guy she picks up at the club is damaged on the driver front fender when we see her wake up in it at the beach parking lot. However prior to that the car is undamaged when they leave the club and when it turns into the driveway. We never see how the car became damaged. (00:41:00 - 00:48:00)
Suggested correction: She was shown to be watching him in order to learn to drive, it can be assumed that she just scraped the car trying to drive.
Other mistake: It's impossible for Sil to wear the conductor's clothes. She's tall and slim around maybe 5'9" while the conductor looks to be 5'5"or so and a little chubby.
Suggested correction: It's not "impossible" in the slightest. Both women were roughly the same height. Natasha Henstridge is about 5'10" and Esther Williams was usually listed around 5'9" or 5'10" before she passed away. And the weight difference also makes sense, as the clothes look baggy and ill-fitting on Sil. (Ex. The jacket is very loose and hanging around her shoulders and arms, and the shirt isn't nearly as form-fitting as it was on the conductor.) It's pretty much perfectly portrayed in the film.
