Alien / UFO movies similar to these

Looking for creepy slow burns rather than action movies. Maybe some documentaries too?

Twin Peaks - Under the Skin - Alien / Aliens - Signs - Communion - Fire in the Sky - Close encounters or the third kind - E.T (creepy woods scenes...) - Fourth Kind - X-Files

Currently on my list: Dark Skies - Cocoon - Mimic - Noone will save you