Have you read the book? Watched the Broadway musical? Listened to the music?
Les Miserables is a fantastic story about the power of redemption. Do not miss it.
If you aren’t familiar with the story and would like to prepare yourself in anticipation of the movie releasing on December 25th, I have a few suggestions. Read the book is an obvious suggestion. {grin} I will say that the completely unabridged version is a rough book to get through. Victor Hugo goes on for pages and pages (sometimes chapters) about things (the life of a Bishop, life in a convent, politics and war) that are somewhat related as background information or side stories but unnecessary to the plot or the pivotal characters. (Just as fair warning.) Because of the side stories and details as well as a complex plot, it can be helpful to have an idea of the main characters and plot before diving into the original story.
If you want a great taste of the Broadway musical without attending a performance, the 10th Anniversary Concert is spectacular. It is available on DVD, but thanks to the wonder of YouTube, you can watch it with one click of the mouse:
The above concert will give you an idea of what ages the movie might be appropriate for.
For a superb, family-friendly Les Miserables experience, I highly recommend Les Miserables Radio Theatre production by Focus on the Family. It is an abridged, full cast audio drama that my boys think is riveting.
In fact, I highly recommend all of the Focus on the Family radio theater productions. The Chronicles of Narnia production is spectacular. At 22 hours of listening pleasure (including an original orchestral score), the series is well-represented. Ben Hur is another family favorite.