Well well, a lot of the people on here complaining that they "couldn't understand half the dialogue". Um...It's a movie called Yardie, about Jamaicans. In fact the dialogue is perfectly intelligible, so ignore these Daily Mail fools. Try watching Rockers if you want to hear real patios. (Though I suspect you may not, it'd probably send you into an apoplectic gammon rage).
Also some of these reviews are trashing the movie out of hand. I can't imagine what their problem can be with Ghanaian-descended actor and director Idris Elba. Seriously guys if you just plain don't like black people there's a name for that and you probably shouldn't watch movies about Jamaicans. Some people also complaining that the director isn't Jamaican. Presumably they're also furious that Spielberg isn't an alien, or a dinosaur.
With that out of the way, this is a visually and sonically sumptuous movie. It looks gorgeous and while the plot is fairly standard gangster fare (I haven't read the book so I judge the film purely on its own merits) it's an enjoyable and well made film, and definitely worth your time.
Ignore the obvious hater comments and make your own mind up.