really good sci-fi alien movies????

I've never really been into sci-fi, like star wars and stuff, but i'm really interested in finding some movies about alien contact and stuff. I remember watching the movie "Contact" when a few years ago when i was like 10 or something. I really liked that one. You know how theres like that type, star wars, and the actual "alien" as in AVP alien movies? so yea i like the first type. Any recommendations?