Murder by Death

I haven't always had the best luck with BBC full cast dramatisations, but this one worked brilliantly.

A demon and an angel set out to thwart the apocalypse.  Chaos ensures.

It's Pratchett, so it's almost guaranteed funny.  I haven't read enough Gaiman to comment on what he brings to the story other than to know it's excellent, whatever it is.  Two masters of fantasy having a bit of fun with Armageddon and a small but pointed commentary on the human condition thrown in at the end.  Oh, and a bloopers reel.

If that's not enough, the voice actor who does Crowley, the demon, sounds a little bit like Alan Rickman.