This is gonna be a tough one... I just remeber a bit from the trailers so... bare with me, i was 10 years old or something, and saw the trailer on a movie rental shop, it's from the same age as the The Lost Boys movie
http://www.imdb.com/title/tt0093437/... the whole movie had a green tone to it, and remember that the characters were in a elevator and they were attacked by monsters, honestly i don't remember pretty much.
It's an 80's movie, one of the few that i didn't saw and would really enjoy to see.
Sorry if i cause some headaches eheheh