i'll just say this:
Prometheus so far is looking to be awesome: the setting, the atmosphere, the concept (at least the snippets we know so far), everything seems to add up to a great epic movie with a mood very similar to the horror of the original ALIEN.
as far as i'm concerned, i do not even care anymore how much this movie is connected to the original movie/franchise. from what i gathered from rumors and such so far is that the connection might be minor at best, meaning that we as the audience can connect the DNA of the movies.
however, something happening storywise towards the ending of the movie that would actually make the connection to ALIEN clear, the apperreance of a Xeno or just anything that is a clear hint to the events in the film, whatever it may be, that would just be the icing on the cake for me.
and i wish i wouldn't spoil myself to take away the surprise of how this connection might be done....but meh