Species looks no where as good today as it did when it first came out.... actually it may have been just another titty movie. I mean it was Natasha Henstridge's tits that got people in the theater, for the most part.
It was more the director who was responsible for that side of it. While the nudity did harm it, there was a lot of interesting stuff in there. Especially Forest Whitaker's character and how Sil's perspective on humanity was evolving. Even the seduction scenes had a nicely chilling predatory serial killer air about them.
I kind of put it in the same league as 'Event Horizon
' and 'Virus
' for that reason: Flawed, but entertainingly rewatchable.