Doomsday -sort of a film review

Almost everyone in Scotland has been killed by a deadly virus.
One of the two tribes (cue for a song) that survives is made up of Glasweigan punk cannibals.
Before their evening sacrifice they get in the mood with a medly of classic hits from Adam and the Ants and Bad Manners.
And that is one of the more sane scenes in this macabre, zombie inspired, trash action movie.
You've been warned.