According to apple the film is about:
“RocknRolla,” a story of sex, thugs and rock ‘n roll. The film takes a dangerous ride into high crime and low life in contemporary London, where real estate has supplanted drugs as the biggest market, and criminals are its most enthusiastic entrepreneurs. With millions up for grabs, all of London’s criminal underworld conspires, colludes and collides with one another in an effort to take their cut. But as high rollers and petty criminals alike jockey for dominance, the true prize of one multi-million-dollar deal will fall into the hands of a junkie rock star, presumed dead but very much alive.
