I have not seen the stage production, but there are a number of well known songs from Les Misérables. Just the production elements in this movie are amazing - from the very begining where slaves are pulling a ship in a stormy sea into a drydock, to the end, with the revolutionary battles - it is hard to imagine how this movie could have even been staged in a theatre in the first place!
Despite being a long movie, it is well paced with superb performances. Anne Hathaway's performance of "I Dreamed a Dream" is possibly one of the singularly best personal performances in a movie I have seen for a very long time. It is no wonder that she is up for so many award; and the movie is worth watching for that scene alone.