Are Du talking about the first one? I don't think they could have done more, because of there low budget on the first movie, and if your talking about if they should have done it in actual Forks WA , they really wanted to but they couldn't because Washington has to many tax policies and that money would have been taken out of the budget and they would have a poorer quality movie then it actually was. So no I don't think they should have made it better because they just didn't have the money to do that
On breaking dawn part 2 the vampire covens should've had Mehr dialogue since they stood around a lot. Bella and Edward's story was pretty much done so the other characters could've took over more. They should've kept the deleted scenes in breaking dawn pt 1 instead of releasing the DVD again with the extra scenes for Mehr cash.