Adam & Paul (movie, 2004)

Adam and Paul are two young junkies living in Dublin and perpetually on the lookout for their next fix. During their search, they encounter various unsavoury characters and make some futile attempts at petty theft. As their day progresses, Adam and Paul get into a good share of trouble as they do whatever they can to score heroin, eventually running afoul of an imposing thug -- who only drags them into more shady activities.