Lock, Stock and Two Smoking Barrels

Yesterday I watched one of my favourite movies - Lock, Stock and Two Smoking Barrels.
A story about four mates who decided to make some money in an illegal and dangerous card game.
One of them had the ability to read people's emotions but he failed. So they not only lost their money they also had to return five thousand grand.
I liked the langage of this movie eventhough I could understand it only with subtitles. It was very informal. Moreover the langage was not correct sometimes.