Two young friends, one straight, one gay, spend their last day together before an apocalyptic disaster strikes the world. Both seem to have had their fair share of sex for their young years, but the gay lad is still a virgin - and he wants his straight best friend to have that honour. We spend the day with them as they discuss and re-live their lives and loves as we build up to the "Big Bang". There is virtually no nudity and some comic and photographic touches help this to be a slightly more subtle love story than we might have expected. The script is pretty ropey, but that's not so…