Does every UKan movie need Colm Meaney? Not that he's a bad actor, I've just become used to him showing up.
The main character in this one is played by Daniel Craig. He's a drug dealer and he'd like to get out of the business so he steals a gigantic amount of ecstacy and is trying to sell it. But he's getting chased by the original owners, different dealers, and stray people who'd like to get in on the deal. The chasing and deals become more and more interwoven until you're sure it's never going to work out, but there's a moment near the end...
Not a bad movie, and definitely something to keep you from dealing drugs.