Well, I didn't really like'em much.. as characters i found them really undeveloped compared to the book. The master of the house-scene describes them as nothing but dirty-minded clowns, but there's so much more in the characters in the book. Even though Helena Bonham Carter is like..my Goddess, mme. Thenardiér was my second least fave character. When she said 'Most of them are goners so they won't miss much', i just hated her, because the ABC Café was my favourite thing in the whole movie:D
However, I think Helena and Sacha did great job acting the Thenardiérs:)