like the pigs off of angry birds? I used to have dreams about aliens all the time... not for years though. sounds weiird
My dreams tend to be social situations as well but every once and awhile I have really fucked up crazy dreams that I have to write down. And yeah the slow running thing sucks, Im usually running away from monsters though.
I know what you mean when you say whenever you run from something in a dream you run really slow, that's been happening to me in dreams since I was a little kid running from kidnappers! Anyway, that's a very interesting nightmare. I never really have Sci-Fi unrealistic dreams unless i'm lucid, most of them are based on real situations.