my youngest is Bellah and not named because of twilight named well before i heard of twilight! I wanted Isabella but DH didnt want her getting called Izzy so we settled on Bellah. I believe you should go with a name you love not because of what movie it is or isnt in, from what i have experienced you are always going to get questions/comments on the babies name regardless of what you pick.
Good luck and best wishes for the birth of your baby