I have to admit I kind of liked the 1993 version of Invasion of the Body Snatchers, simply titled Body Snatchers. The twist that drew me in is that this is set on any army base. A scientist brings his family to the base for some research project. But because military personnel are already robotic and emotionally unexpressive, it is doubly creepy because it's harder to tell who is a pod person. Also, the little boy is the first to notice people aren't real, but of course no one believes him. The scariest thing is when his mother is taken over. The ending is pretty cool too.