Not seen this in since it came out and it stood the test of time well. Enjoyed it immensely. I think reviews kinda dismissed it as a Welsh Trainspotting but this definitely has an identity of its own. Rhys Ifans and his real life both play 'the twins' - 2 drug fuelled, joyriding delinquients who get up in a world of bent coppers, dognapping and karaoke.
It has a great soundtrack too.