'Filth' is a British crime film based on Irvine Welsh's novel of the same name. The book was published in 1998, not long after Welsh's 'Trainspotting' was adapted into a feature film by Danny Boyle. Many said it couldn't be adapted but director and writer, Jon S. Baird, attempts to prove it can be done.

James McAvoy plays the drug and alochol addicted policeman, Bruce Robinson

The premise of the story fits its title accordingly, the film follows a cocaine sniffing, alcohol drinking Edinburgh policeman called Bruce Robinson, who works his way through the criminal underworld in one of Scotland's major cities, showing a lack of professionalism in his near-psychotic behaviour.

James McAvoy portrays the corrupt law enforcer and even before signing up for the risqué role, he knew it wouldn't appeal to everyone, according to the BBC.

"It's full on and definitely not for the fainthearted, and there's not a lot of that in the film industry," he explains. "The character represented an opportunity to take an audience and really toy with them."

Watch the 'Filth' trailer here

The movie, which is sure to repulse many moviegoers, premiered in the UK this past Friday (Oct 4th), but to what kind of reception?

John Cunningham from Film4 compliments the Scottish actor as he said "James McAvoy steals the show with his complex portrayal of a sociopath in this deftly directed, no-holds-barred black comedy".

Adam Woodward of Little White Lies echoes the praise for McAvoy, "A major career refresh for James McAvoy who excels as an insanely crooked copper".

james mcavoy
McAvoy has recieved praise for his portrayal of the the corrupt law enforcer

However, as predicted the movie's explosive vile nature won't appeal to mainstream audiences as Peter Bradshaw from The Guardian thought, "For the first half-hour it's got a full-on horrible energy, but there isn't enough humour for it to qualify as comedy, and not enough reality or plausible characterisation to justify calling it any sort of procedural noir".

Graham Young from the Birmingham Mail equally did not approve of the adaptation as he wrote "Filth is cinema's equivalent of experiencing a heavy Scottish downpour - without your coat on".

Isn't foul-mouthed, brutal and bleak what the British are good do best? Give this film a chance as Welsh's last adaptation, 'Trainspotting', turned into an iconic movie for British cinema.

'Filth' was released on October 4th 2013.

filth poster
'Filth' is out in theatres now