I think it is a big mistake to take out the Gaunts they are vital in the explanations of the horcruxes and explains Tom Riddle/Voldemort's background. I know they have to cut out somethings for time, but this one will backfire on WB. I am sure it will be a great movie, but they need the Gaunts. The only way they now can handle the Gaunts is for Dumbledore to quickly explain to Harry who they are. We'll all see next Novmeber how this will turn out.