Watch James McAvoy as you've never seen him before in the explicit red band trailer for the upcoming crime drama Filth, director Jon S. Baird's adaptation of Trainspotting author Irvine Welsh's novel. The actor stars as Scottish detective Bruce Robertson, who believes that if he gets a promotion by solving the murder of a fellow cop, his wife will come back to him and all will be right with the world. Of course, his path to redemption isn't that easy for this drug-addled loose cannon, who is seen engaging in all sorts of deplorable acts in this restricted trailer, which also features co-stars Imogen Poots, Jamie Bell and Jim Broadbent.

CLICK HERE to check out the red band trailer, featuring a brief glimpse of nudity, sexual situations and plenty of R-rated language. Be sure to check back on Tuesday for the all-ages domestic trailer for the film, debuting on iTunes and VOD formats April 24 before arriving in theaters May 30.

Detective Sergeant Bruce Robertson wants a promotion. He is clearly the best man for the job - the rest of his colleagues are just idiots.

Annoyingly, there's been a murder and Bruce's boss wants results. No problem for Bruce. He's in control and when he solves the case and wins the promotion, his wife will return to him. No problem.

But is life that simple? Is Bruce the man he really thinks he is? The tragic, hilarious and memorable answers unfold in Filth...