Okay; I guess that one was kind of obscure, too. I was going for Terry Gilliam's 1995 movie Twelve Monkeys. One of my favorites. :-)
This one should be easier:
1: The 600 series had rubber skin. We spotted them easy, but these are new. They look human... sweat, bad breath, everything. Very hard to spot. I had to wait till he moved on you before I could zero him.
2: Look... I am not stupid, you know. They cannot make things like that yet.
1: Not yet. Not for about 40 years.
2: Are you saying it's from the future?
1: One possible future. From your point of view... I don't know tech stuff.
2: Then you're from the future, too. Is that right?
1: Right.
2: Right.