Hi there: This time, I'm looking for two old films. The scenes I remember are the following; some people find themselves on an isolated location and suddenly, many thing start to fall from the sky and when they land, they're something I'd call "Dog Like Aliens" which are strong enough to dig through solid concrete. The people in danger have to build some sort of metallic armors to protect themselves from the fury of those alien things. The scene I remember from the second film shows people drilling into the earth and they find blood or something like that on the tip of the drilling rig. They go trough the ground and take out a piece of some sort of animal thing. That piece is put into some sort of tank and transform into an evil thing. That's all I can remember. Any help in finding the titles of those films is gratefully appreciated in advance. Cheers-