Sissy Spacek wasn’t considered for the role of Carrie until her husband, art director Jack Fisk, convinced director Brian De Palma to allow her to audition. For her screen test,Spacek rubbed Vaseline into her hair and didn’t bother to wash her face. She also wore a sailor dress (which her mother had made for her when she was in the seventh grade) with the hem cut off (x).
Clementine’s hair goes through several color changes, blue, orange, red, green, and brown which seems to be her natural hair color. This helps the viewer keep track of where her relationship with Joel corresponds to the plot.