name this movie please

[barffy-59]

i never saw the beging of the film,all i can remember is boys on horse and the police take there horses, they go home and tell there dads,they go after the police smashing up the polices cars,then the film turns to 4 older boys i dont no if its the same boys grown up, one by one they die,one boy is on a horse with a noose round his neck a big lorry comes round the corner and scares the horse,the boy hangs,another boy is riding his horse across the motorway he gets killed,and at the end of the film a girl is having a row with one of the boys she picks up a rock and smashes it over the boy head,then the righting goes up.there are some things in the film one boy pinches a phone from a person coming out of a shop and drives of in a stolen car i think a red jaguar, the police phone him up and keep telling him to give his self up. its a bit like *** but with boys in it.its not 2 smoking barrels i think they are talking irish its noy the film in to the west. if anyone can help i will be very grateful cheers