Need help trying to ID a film

Either in the late 80 or early 90s I watched a sci-fi/ horror film based around 3 aliens/humanoids monitored in stasus tubes by scientists. Something happens and the tubes lose power, the aliens escape and start killing the scientists and other staff. I am sure there were 2 men and 1 women or it might have been the other way round.

Now I thought the title had "shadow" or "dark" in it but I have not come across any movie info that reads like I remember it.

Any help would be greatly appreciated :) Thanks.

[The Mothman]

actually it kinda sounds like Alien Ressurection.

[_____V_____]

My thoughts exactly. But then it could be another movie...

Alien Terminator (1996)

[newb]

Sounds a bit like LIFEFORCE....but I don't remember any tubes.

http://www.imdb.com/title/tt0089489/


oh......almost forgot

[PR3SSUR3]

I tried to similarly censor these ones using Microsoft Paint, so I hope it worked:-

[PR3SSUR3]

Shit it didn't.

[newb]

Originally Posted by PR3SSUR3

Shit it didn't.

I would think cartoon boobs fall into the same catergory as painted boobs.