I just got back from a PACKED noon showing. I loved it and I think it's an outstanding film. I don't really understand the negative criticism that this film has received (Entertainment Weekly gave this a C. 
Really?). It's possibly the best movie musical I've seen. Considering I'm not much of a musical fan, that's saying a lot. Seriously, the only other movie musicals I really enjoy are Sweeney Todd and Little Shop of Horrors (not counting Disney films). I saw the show when it was on Broadway 12 years ago and I enjoyed it then, though there was a lot that I didn't remember or understand (Les Mis is a heavy show for a 12-year old). So before going to see this I watched the 25th Anniversary concert on YouTube to refresh my memory. After watching that, I was really excited to see the film.
Hugh Jackman was amazing as Jean Valjean. I believe he deserves the Oscar this year. Yes, Daniel Day-Lewis was great as Lincoln, but he didn't have to sing while covered in human fecal matter and carrying a full grown man on his shoulders. Jackman just brought so much heart to the character. 
Speaking of Oscars, you might as well just give it to Anne Hathaway now. Fantine had such little screen time, but she left such an unbelievable emotional impact on the film. What's left to say about her rendition of "I Dreamed A Dream" that hasn't been said already? It's like every scene she's in after the factory, she just wrenches your heart out. Fantastic performance.
I know I'm in the minority but I loved Russell Crowe as Javert. Maybe it's because Javert is my favorite character, so I have a soft spot there. Did he have the best singing voice in the film? No, but he's far from a bad singer, and he has a commanding presence. The only complaint I have about Javert is the [BLACKOUT]awful Looney Tunes sound effect in his death scene when he hit the water. THWACK! [/BLACKOUT] But I loved "Stars". The way it was shot reminded me a lot of Disney's Hunchback of Notre Dame, specifically the song "Hellfire", where another Victor Hugo villain sang while looking upon Notre Dame. 
I really liked Samantha Barks as Eponine. Eddie Redmayne as Marius did a great job too. I was very impressed by "Empty Chairs at Empty Tables". As for Amanda Seyfried as Cosette, she was fine, but the character has so little to do that I could care less who was in that role. Other standouts were Enjolras and Gavroche. As for the Thenardiers, Sacha Baron Cohen and Helena Bonham Carter really brought the comic relief. I just love how much sleazier they get each time you see them. And "Master of the House" was absolutely hilarious. All in all, this was a damn good cast.
The film itself played out like the show, more or less. The funny stuff is funny (pretty much anything with the Thenardiers), and the sad stuff is SAD. I shed a few tears in the beginning during Fantine's scenes and at the finale. That damn Anne Hathaway, she just breaks your heart... 

 The only things I didn't care for apart from the afore mentioned sound effect are the same problems I have with the show, namely the fact that there's not enough development for the characters introduced later in the story (Eponine, Enjolras) and that a lot of the second act feels rushed after the slow buildup to Valjean meeting Cosette. I had no problem with the camera angles, and the fact that they sang everything live made it all the better.
But it's a great film and a great adaptation of the show. I hope it gets a lot of Oscar recognition.