Renesmee Cullen actress talks Twilight Breaking Dawn swear jar,Robert Pattinson & more. The other night at the Breaking Dawn part 1, Los Angeles,California premiere, Celebuzz caught up to some of the stars of the film (video below),which included that cute,little Renesmee Cullen actress MacKenzie Foy. She talked about how she loved working with Robert Pattinson,that swear jar,and more. It also included interviews with screenwriter Melissa Rosenberg, Tinsel Korey , Boo Boo Stewart, and Chaske Spencer. The clip actually features them talking with a lot of the stars from the flick quite a bit. At about a minute and 36 seconds into it, Mackenzie is interviewed,and she does look adorable. She talked about the swear jar where the guys had to put money in it everytime they cussed around her. She didn't remember how much money she collected,but said she gave it all to Saint Jude's Hospital.