Here's the latest trailer for Filth, the much-hyped James McAvoy comedy due for release on 27 September.
Well, in Scotland that is – it won't hit the rest of the UK until October.
The reason for the Scots-bias is because it's an adaptation of an Irvine Welsh novel, about an Edinburgh policeman called Bruce Robertson who is so corrupt, he makes Harvey Keitel's Bad Lieutenant look like the copper from Postman Pat.
It's comfortably Welsh's darkest novel – which is really saying something – although judging from what we've seen so far, director Jon S. Baird has opted to play up the novel's black humour rather than focus on Bruce Robertson's psychological torment, which on the page cumlinates in ending so bleak it haunts you for weeks.
With the obvious exception of Trainspotting, Irvine Welsh's books and short stories haven't always translated well to the big screen so we're holding out judgement on this one, but McAvoy's star turn is already being called a career best and with Welsh on the writing and producing team, there's plenty of reasons to be optimistic.