Sure, it leaves out stuff that was in the book - but a movie would have to be 7 hours long to include EVERY single character and description. For those not keen on musicals, this is a perfect oportunity to understand the plot of 'Les Miserables' without having to endure the millions of songs in the stage show. The dark atmosphere and excellent acting add an impression of pace not found in the book or the stage show. The way the characters Valjean (escaped and reformed convict), and Javert (policeman who tries to catch Valjean at all costs) interact is done just right - Javert's obsessive nature countering Valjean's reformed nature, perfectly. A dark movie, but ultimately very watchable, as long as you don't expect to get the whole of the book.