I got a chance to watch this film on DVD just after it came out and it is still as funny the second time around, you can see my original thoughts on it here. I think that this is so far my film of the year and will take a lot of beating, the comedy and chemistry between Nick Frost, Simon Pegg and "Paul" is brilliant. The timing and the comedy is phenomenal and the sci-fi references within the film are just great I found more the second time I watched it. Apparently according to Mark Kermode the film was toned down for a more mainstream audience. If this is the case I hope that the shot extra footage that they could them make a "Directors Cut" to show the film how they wanted it.
I thought that the film had a lot of references in it and I am sure I missed a few and would like to see a definitive list put out by Simon Pegg and Nick Frost so that we can see what we have missed. I am comfortable getting most of them however there are a few that go so far over my head I do not even know where they come from at all.
This is a total recommend 5 stars of comedy gold and I think that even if you are not a sci-fi film fan then you will still get a lot from this film, I look forward to seeing it again and again in the next few years.